JAMB UTME - Physical Education - 2023

The type of family in which one spouse(man or woman) has several other spouses is called?

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The correct answer is a **polygamous family**. In a polygamous family, one spouse (whether it be a man or a woman) has multiple spouses. This means that the individual has entered into multiple legal marriages simultaneously. Polygamy can take different forms. One common form is **polygyny**, where a man has multiple wives. In this case, the man is the only one who is allowed to have multiple spouses. Another form is **polyandry**, where a woman has multiple husbands. However, polyandry is less common compared to polygyny. In a polygamous family, the spouses may live together or in separate households. It is important to note that the type of family structure can vary across different cultures and religions around the world. While polygamy is practiced in some societies, it is illegal in many countries.

The following are the examples of sports except

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marketing, the sum of activities involved in directing the flow of goods and services from producers to consumers

After digestion protein is converted into

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After digestion, proteins are converted into amino acids.
During the process of digestion, proteins are broken down into smaller molecules called peptides through the action of enzymes in the stomach and small intestine. These peptides are then further broken down by other enzymes into individual amino acids.
Amino acids are the building blocks of proteins and are crucial for various biological processes in the body. They are essential for the growth and repair of tissues, the synthesis of enzymes and hormones, and the functioning of the immune system.
Once proteins have been converted into amino acids, they can be absorbed into the bloodstream and transported to various cells in the body, where they are used to build new proteins or used as a source of energy.
Therefore, the correct answer is amino acid.

Fruit and vegetables are important because

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Fruits and vegetables are important for several reasons:

1. They give you energy: Fruits and vegetables are packed with carbohydrates, which are the body's main source of energy. They provide us with the fuel we need to go about our daily activities.

2. They are easily available: Fruits and vegetables are widely accessible in grocery stores, farmers' markets, and even in our own backyards. They are readily available, making it convenient for us to incorporate them into our diets.

3. They are colorful: Fruits and vegetables come in a wide array of vibrant colors such as red, orange, green, and purple. These colors are not just visually appealing, but they also indicate the presence of different nutrients and antioxidants that are essential for our health.

4. They provide you with a wide variety of vitamins, minerals, and nutrients: Fruits and vegetables are rich in vitamins, minerals, and nutrients that our bodies need to function properly. They are excellent sources of vitamin C, vitamin A, potassium, fiber, and folate, among others.

In conclusion, fruits and vegetables give us energy, are easily available, add color to our meals, and provide us with a wide range of essential vitamins, minerals, and nutrients. It is important to include them in our daily diet for overall health and wellbeing.

The human heart is located in the

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The human heart is located in the thoracic cavity.
The thoracic cavity is the space found in the chest region between the neck and the diaphragm. It is protected by the rib cage and contains vital organs such as the heart and lungs.
The heart, which is a muscular organ responsible for pumping blood throughout the body, is specifically positioned in the middle of the thoracic cavity, slightly tilted to the left. It is surrounded and protected by the lungs.
The positioning of the heart in the thoracic cavity allows it to be close to major blood vessels and organs, facilitating its primary function of pumping oxygenated blood to the body and deoxygenated blood back to the lungs for oxygenation.

Which of the following is not a skill in Judo ?

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In Judo, one of the most important things to understand is that it is primarily a **grappling martial art**. While there are various skills involved, we need to identify the skill that does not belong to Judo. Out of the given options, **kicking** is the skill that is not a part of Judo. In fact, Judo specifically focuses on throwing and groundwork techniques rather than striking or kicking. Let's briefly discuss the other skills mentioned in the options: - **Gripping**: This skill is crucial in Judo as it involves controlling and manipulating your opponent's body by gripping their uniform (gi). - **Stance**: A correct and balanced stance is essential in Judo. It provides stability, power, and control during throwing techniques. - **Falling**: Falling or **ukemi** is an integral part of Judo. Proper falling techniques are taught to Judo practitioners to ensure their safety during training and competition. Therefore, it is clear that **kicking** is not a skill in Judo, whereas gripping, stance, and falling are all fundamental aspects of this martial art.

Which of the following is an indoor recreational activity?

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An indoor recreational activity refers to an activity that can be enjoyed indoors, typically within a building or a closed space. Out of the given options, the only activity that can be considered as an indoor recreational activity is playing chess.
Swimming, hiking, and jogging all take place outdoors and require open spaces like pools, mountains, or parks. These activities involve physical movements in natural or outdoor environments. On the other hand, playing chess is an intellectual and strategic game that can be played indoors. It is usually played on a chessboard and involves planning and outwitting your opponent by moving different chess pieces on the board.
Playing chess can be enjoyed in the comfort of a home, a chess club, or any indoor space that provides a suitable environment to set up the chessboard and focus on the game. It does not require any specific physical fitness level or a large area, making it accessible to people of different ages and abilities.
In conclusion, playing chess is the only indoor recreational activity out of the options given. It is a mentally stimulating game that can be enjoyed indoors without the need for outdoor spaces or physical exertion.

Which of the following helps human sperm with locomotion?

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The correct answer that helps human sperm with locomotion is the flagellum. The flagellum is a long, whip-like structure that is present in the sperm. It is responsible for the movement of the sperm through various fluids in order to reach and fertilize the egg.
The flagellum is composed of microtubules, which are tiny structures that give it its shape and strength. These microtubules are arranged in a pattern that allows the flagellum to move in a whip-like motion. This motion propels the sperm forward, allowing it to swim through the female reproductive tract towards the egg.
The movement of the flagellum is powered by a complex biochemical process. Inside the flagellum, there are structures called dynein arms. These dynein arms use energy from ATP molecules to move and bend the microtubules, causing the flagellum to move in a coordinated manner.
The flagellum is essential for the sperm's ability to swim and reach the egg for fertilization. Without a functional flagellum, the sperm would not be able to move effectively and would have a much lower chance of successfully fertilizing an egg.
In summary, the flagellum is the structure in human sperm that helps with locomotion. Its whip-like motion, powered by dynein arms and ATP, allows the sperm to swim towards the egg for fertilization.

A sport where participants should have no means of contact is called ?

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A sport where participants should have no means of contact is called non-contact games. In these games, players are not allowed to physically touch or tackle each other during gameplay. The objective is to avoid any physical contact with opponents, ensuring the safety and well-being of all players involved. The focus is on skill, strategy, and coordination rather than physical contact. Examples of non-contact games include tennis, badminton, swimming, and archery. These sports encourage fair competition and sportsmanship without risking injuries that can occur in contact sports.

Excess presence of which of the following causes tooth decay in children?

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Tooth decay in children is primarily caused by the excess presence of fluoride. Fluoride is a naturally occurring mineral that can be found in various sources such as water, food, and dental products. It is commonly added to toothpaste and water supplies to help prevent tooth decay.
However, when there is an excessive amount of fluoride, it can have negative effects on dental health. This is particularly true for children whose teeth are still developing.
Excess fluoride can cause a condition called dental fluorosis, which affects the outer layer of the teeth called the enamel. Dental fluorosis leads to the formation of white or brownish stains, and in severe cases, it can cause pitting or mottling of the teeth.
It's important to note that fluoride in optimal amounts is beneficial for dental health, as it helps to strengthen enamel and prevent tooth decay. The key is to ensure that children are exposed to fluoride in appropriate concentrations.
In summary, the excess presence of fluoride can cause tooth decay in children by leading to dental fluorosis, resulting in discoloration and damage to the tooth enamel.

The following are the injuries that can be sustained at sport except ____

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Stomach ache is not typically considered an injury that can be sustained in sports. While it is common to experience stomach discomfort or cramps during physical activities, it is generally caused by factors such as dehydration, improper nutrition, or digestive issues rather than a direct injury to the body.
In contrast, sprains, bruises, and strains are types of injuries that can occur in sports:
- Sprains occur when ligaments, which connect bones together, are stretched or torn. This can happen when a joint is forcefully twisted or bent beyond its normal range of motion. Common areas for sprains include the ankle, wrist, or knee.
- Bruises, also known as contusions, result from a direct blow to the body. When tiny blood vessels under the skin get damaged, blood leaks out and causes discoloration, swelling, and tenderness. Bruises can occur in various body parts depending on the impact during sports.
- Strains are injuries to muscles or tendons. They typically occur due to overstretching or overexertion of the affected tissues. Strains commonly happen in areas like the hamstring, calf muscles, or lower back.
It is important to note that while stomach aches may not be considered an injury, they should not be ignored. It is crucial to address any persistent or severe stomach discomfort during physical activity by seeking medical advice and taking appropriate measures such as staying hydrated, consuming balanced meals, and avoiding excessive exertion.

Which of the following is not an equipment/facility used in badminton games?

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Paddles are not used in badminton games. Badminton is a racquet sport played using racquets to hit a shuttlecock across a net. The equipment used in badminton includes a racquet, shuttlecock, and strings for the racquet.

A deuce in a table tennis game means

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In a table tennis game, a deuce means that both players have reached a point of tie. It happens when the score reaches 10-10. At this point, the game becomes a deuce, and players continue playing until one player gets a lead of 2 points. So, a deuce is not a loss, a win, or a foul. It simply indicates a tie in the game where players need to score 2 consecutive points to win the game.

Which of the following is not a component of physical fitness.

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Physical fitness is the ability of the body to carry out daily tasks and physical activities without undue fatigue. It is comprised of various components that contribute to overall health and well-being. Out of the options provided, fat is not a component of physical fitness.
Muscular endurance is one of the components of physical fitness. It refers to the ability of muscles to exert force repeatedly over a period of time. This is important for activities that require sustained muscle contractions, such as running long distances or performing multiple repetitions of an exercise.
Flexibility is another component of physical fitness. It relates to the range of motion in joints and muscles. Having good flexibility allows for better performance in activities that require stretching or bending, like yoga or gymnastics.
Cardiovascular endurance is also a component of physical fitness. It refers to the ability of the heart, lungs, and blood vessels to deliver oxygen and nutrients to the muscles during prolonged physical activity. Good cardiovascular endurance is important for activities that require continuous movement, such as cycling or swimming.
Fat, on the other hand, is not a component of physical fitness. It is a type of body tissue that stores energy and insulation. While body fat percentage can be a consideration in overall health, it is not directly related to physical fitness components. However, having excessive body fat can affect an individual's overall fitness level and may hinder their ability to perform physical activities effectively.
In conclusion, fat is not a component of physical fitness. The components of physical fitness include muscular endurance, flexibility, and cardiovascular endurance.

Herbert Macaulay is considered as the founder of Nigerian Nationalism. He was a Nigerian nationalist, politician, engineer, architect, journalist, and musician and is considered by many Nigerians as the founder of Nigerian nationalism.

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Herbert Macaulay is considered the founder of Nigerian Nationalism because of his significant contributions to the nationalist movement in Nigeria. He played a key role in advocating for Nigeria's independence from British colonial rule and in mobilizing Nigerians to fight for their rights and freedom.
Macaulay was a multi-talented individual who excelled in various fields. He was a nationalist, politician, engineer, architect, journalist, and even a musician. Through his diverse skills and talents, he was able to engage with people from different backgrounds and effectively communicate his ideas and goals.
As a politician, Macaulay used his platform to advocate for constitutional reforms and the inclusion of Nigerians in the governance of their own country. He founded the Nigerian National Democratic Party (NNDP) in 1923, which became a prominent political party advocating for Nigerian interests.
Macaulay's journalistic skills were instrumental in spreading awareness and mobilizing Nigerians for the nationalist cause. He founded and edited the newspaper Lagos Daily News, which became a powerful tool for disseminating information and shaping public opinion.
Furthermore, Macaulay's engineering and architectural expertise enabled him to contribute to the development and modernization of Lagos. He played a key role in urban planning and infrastructure projects, which helped improve the quality of life for Nigerians.
Macaulay's unwavering commitment to Nigerian nationalism and his tireless efforts in fighting for independence laid the foundation for future nationalist leaders, such as Tafawa Balewa, Aguyi Ironsi, and Ahmadu Bello. While these individuals also made significant contributions to Nigerian nationalism, it was Macaulay who paved the way and inspired others to join the cause.
In conclusion, Herbert Macaulay is widely regarded as the founder of Nigerian nationalism due to his integral role in advocating for Nigeria's independence, his contributions to various fields, and his ability to mobilize and unite Nigerians in the nationalist movement.

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The sport injury that results in the break of bone is called fracture.
A fracture occurs when there is a break in the continuity of a bone. This can happen as a result of a sports-related injury where there is a direct impact or excessive force applied to the bone. Fractures can vary in severity, ranging from a small crack to a complete break.
Unlike a sprain, which involves damage to the ligaments connecting bones, a fracture specifically refers to a break in the bone itself.
Similarly, a strain is an injury to the muscles or tendons, while a bruise is the result of damage to the blood vessels under the skin.
It is important to note that fractures require medical attention and proper treatment, which may involve immobilizing the affected area, using casts or splints, and in some cases, surgery. Prompt and appropriate management is crucial to ensure proper healing and minimize complications.

How many trials are allowed in shot put?

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Only 3 trials are allowed in shot put.

1. The human ankle has _____ bones

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Ankle is known as tarsus in humans. It contains seven bones called tarsal's. It is arranged in three rows having gliding joints

Which of the following is not a throw event ?

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Pole vault is not a throw event. It is a field event in athletics where a person uses a long, flexible pole (which today is usually made either of fiberglass or carbon fiber) as an aid to jump over a bar. Javelin throw, shot put, and hammer throw are all throw events.

Which of the following is an indoor game ?

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One of the options in the list that is an indoor game is chess.
Chess is a strategic board game that is played between two players. It is typically played indoors on a square board consisting of 64 squares of alternating colors. The objective of the game is to checkmate the opponent's king, which means putting the opponent's king in a position where it is under immediate attack and cannot escape capture.
Chess is considered an indoor game because it is typically played in a controlled environment, such as indoors at home, in schools, or in chess clubs. The game requires a calm and quiet setting, as players need to concentrate, think ahead, and plan their moves strategically.
Unlike outdoor games such as sprinting, soccer, and swimming, which require physical activity and are played in open spaces, chess is a mental and intellectual game that can be enjoyed indoors. It can be played at any time, independent of weather conditions. Chess also promotes critical thinking, problem-solving, and decision-making skills, making it a popular choice for intellectual stimulation and competition.
In summary, chess is an indoor game because it is played on a board, requires mental effort, and is typically enjoyed in a controlled environment, providing an opportunity for strategic thinking and intellectual engagement.

What year was the first modern olympic game held ?

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The first modern Olympic Games were held in 1896. These games marked the revival of the ancient Greek tradition of hosting athletic competitions. The idea behind the modern Olympics was to promote peace and goodwill among nations through sports.
The Olympic Games were first organized by a French nobleman named Pierre de Coubertin. He believed that sports could bring people from different countries together and promote understanding and friendship.
The city of Athens, Greece was chosen as the host for the inaugural modern Olympic Games. This was a significant choice because it was in Greece where the ancient Olympics were held for centuries.
The first modern Olympics brought together athletes from 14 different countries to compete in various sporting events. The games included events such as athletics, cycling, swimming, and gymnastics.
The opening ceremony of the 1896 Olympics was a simple affair compared to the elaborate ceremonies we see today. It took place in the Panathenaic Stadium, a venue with historical significance dating back to ancient times.
The Olympic Games have been held every four years since 1896, with a few interruptions due to world wars. They have grown in scale and popularity over the years, becoming one of the most prestigious sporting events in the world.
In conclusion, the first modern Olympic Games were held in 1896 in Athens, Greece. These games marked the revival of the ancient Greek tradition and aimed to promote peace and goodwill among nations through sports.

Which of the following is an example of non-contact games

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Swimming is an example of a non-contact game. In swimming, athletes participate in a race by propelling themselves through the water using different swimming strokes. Unlike boxing, wrestling, and taekwondo, swimming does not involve physical contact between the athletes. Instead, swimmers focus on their speed, technique, and endurance to outperform their competitors and reach the finish line faster. It is essential to note that while swimming is a non-contact game, athletes still adhere to certain rules and regulations to ensure fair competition and safety in the pool.

Which of the following is a field event ?

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A field event is a type of athletic competition that takes place in a designated area or field rather than on a track. It involves athletes competing in various events that require physical strength, skill, and technique.
Out of the options provided, javelin throw is the field event. In javelin throw, an athlete throws a long spear-like object called a javelin as far as possible within a marked area. The aim is to achieve the maximum distance with proper technique, accuracy, and strength.
On the other hand, hurdles race, 100m race, and relay race are all track events. In hurdles race, athletes run and jump over a series of hurdles placed at regular intervals on the track. The objective is to complete the race in the shortest possible time while clearing all the hurdles.
In a 100m race, athletes compete to run a distance of 100 meters in the fastest time possible, with the finish line being the determining factor.
A relay race involves a team of runners passing a baton from one runner to another, usually in a circular or linear track. The goal is to complete the race in the shortest time by efficiently transferring the baton between team members.
Therefore, among the options mentioned, only javelin throw can be categorized as a field event as it takes place in a designated area and requires throwing a javelin for distance.

Which of the following is the international governing body responsible for soccer ?

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The international governing body responsible for soccer is FIFA. FIFA stands for the Fédération Internationale de Football Association. It is the organization that governs and regulates the sport of soccer on a global scale. FIFA is responsible for organizing international competitions such as the FIFA World Cup, which is held every four years and is considered the most prestigious tournament in soccer.
FIFA is in charge of creating and enforcing the rules and regulations of the game. They ensure fair play and provide guidance to national soccer associations and clubs. FIFA also works to develop and promote soccer at all levels, from grassroots to professional.
One of FIFA's important roles is to oversee the national soccer associations and ensure that they comply with the rules and principles of the game. They also promote the values of soccer, such as inclusivity, diversity, and respect.
In summary, FIFA is the international governing body for soccer, responsible for organizing competitions, creating rules, developing the sport, and maintaining its integrity globally.

Which of the following is not an official in a gymnastic game ?

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In a gymnastic game, the officials play different roles to ensure fair and organized competition. Among the options provided, **lines men** is not an official in a gymnastic game. Here's an explanation of the roles of the other officials: - **Referee**: The referee is responsible for ensuring that the gymnastic game is conducted according to the rules and regulations. They oversee the overall conduct of the competition, including starting and ending the routines or exercises, making final decisions on rule violations, and handling any disputes or protests. - **Judges**: Judges play a crucial role in gymnastics competitions. Their primary task is to evaluate and score the performances of the gymnasts based on predefined criteria. They assess factors such as technique, difficulty, execution, artistry, and overall performance. The judges assign scores to each routine or exercise, which are used to determine the winners. - **Time keepers**: Time keepers, also known as time officials, are responsible for accurately measuring and recording the duration of each gymnast's routine or exercise. They ensure that the athletes adhere to the time limits specified for their respective routines. The timekeepers use timing devices, such as stopwatches or electronic timers, to track the durations. While all the other options mentioned—referee, judges, and time keepers—are important officials in gymnastics, **lines men** are not typically involved in gymnastic competitions. The term "lines men" is more commonly associated with sports such as soccer or rugby, where their role is to assist the referee by indicating when the ball has crossed the boundary lines of the field. In gymnastics, the focus is mainly on the gymnasts' performances and the evaluation by the judges.

One of these is a component of school health programme.

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A component of a school health program is **health services**. Health services are an essential part of a school health program as they involve medical professionals and resources that cater to the healthcare needs of students. These services can include regular health check-ups, immunizations, first aid, and treatment for minor illnesses and injuries. Health services also provide support for students with chronic conditions such as asthma or diabetes. The presence of health services in schools ensures that students have access to immediate medical care and support, promoting their overall well-being and enabling them to focus on their studies. These services can be provided by school nurses or in collaboration with local healthcare providers. It is important to note that while external services and curable services may contribute to the well-being of students, they are not specific components of a school health program. External services may refer to community organizations or agencies that provide support to schools but are not directly part of the program. Curable services may not be a relevant term in the context of a school health program, as it is unclear what specific services it entails. In summary, health services are an integral component of a school health program, ensuring the physical well-being of students by providing access to medical care, support, and resources.

To promote unity and solidarity among African nations, All Africa games was founded by the African Union (AU). What year were the first games held ?

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The first All Africa Games were held in 1965. These games were established by the African Union (AU) as a way to promote unity and solidarity among African nations.
The All Africa Games is a multi-sport event that brings together athletes from all over the African continent. It is held every four years, similar to the Olympic Games.
The purpose of these games is to encourage friendly competition and cooperation among African nations, while also providing a platform for athletes to showcase their talents on an international stage.
The first edition of the All Africa Games took place in Brazzaville, Congo, with athletes from 30 African countries participating in various sports disciplines. These sports included athletics, swimming, boxing, football, basketball, and more.
Since then, the All Africa Games have grown in size and popularity, with more African countries participating in each edition and new sports being added to the program. It has become an important event for African athletes to represent their countries and strive for sporting excellence.

Which of the following is not a benefit of recreation ?

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Benefits of recreation
- It helps to correct postural defect
- It provides opportunity for creativity and self expression
- It raises the health and fitness level of the participant

Which of the following is an example of sprint race ?

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100m is an example of a sprint race. Sprint races are short distance races in athletics and running. They involve running as fast as possible over a short distance. The other options like marathon and 1,500m are long distance races, and 400m is considered a middle distance race.

How many pairs of the spinal nerve are located in human?

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31 pairs of spinal nerves are located in the human body.

The spinal nerves are part of the peripheral nervous system, which is responsible for transmitting signals between the central nervous system (brain and spinal cord) and the rest of the body.

The nerves emerge from the spinal cord in the vertebral column and pass through spaces called intervertebral foramina to reach different parts of the body.

There are 31 pairs of spinal nerves in total:

- 8 pairs of cervical nerves (C1-C8): These emerge from the nekc area and supply signals to the neck, shoulders, arms, and hands.

- 12 pairs of thoracic nerves (T1-T12): These emerge from the upper back area and supply signals to the chest, abdomen, and back.

- 5 pairs of lumbar nerves (L1-L5): These emerge from the lower back area and supply signals to the lower back, buttocks, and legs.

- 5 pairs of sacral nerves (S1-S5): These emerge from the pelvis area and supply signals to the pelvis, genitals, and legs.

- 1 pair of coccygeal nerves: These emerge from the base of the spine and supply signals to the tailbone area.

Each pair of spinal nerves has a sensory component, which carries signals from the body to the spinal cord and a motor component, which carries signals from the spinal cord to the muscles and organs.

By having 31 pairs of spinal nerves, the human body is able to send and receive signals to and from every part of the body, allowing for movement, sensation, and control over bodily functions.

Saliva helps in the digestion of

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Saliva helps in the digestion of starch.
Starch is a carbohydrate that is found in foods like rice, potatoes, bread, and pasta. When we eat foods containing starch, our body needs to break it down into smaller molecules so that it can be absorbed and used for energy.
This is where saliva comes in! When we chew our food, our salivary glands produce saliva that contains an enzyme called amylase. Amylase is responsible for breaking down the starch molecules into smaller sugar molecules called glucose.
By breaking down starch, saliva helps to start the process of digestion and makes it easier for our body to absorb and utilize the energy from the food we eat.
Saliva doesn't directly help in the digestion of proteins, fats, or vitamins. These nutrients are broken down by different enzymes and processes in our digestive system.
In summary, saliva plays an important role in the digestion of starch by producing an enzyme called amylase that breaks down starch into smaller sugar molecules.

The smallest unit of social organization in our society is

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The smallest unit of social organization in our society is the family.
The family is a group of people who are related by blood, marriage, or adoption and live together in a household. Families provide individuals with emotional support, shelter, food, and other basic needs. They are the building blocks of society, as they are responsible for nurturing and socializing individuals from a young age.
Families are usually led by parents or guardians who provide guidance and instill values in their children. They teach them essential life skills and help them develop a sense of identity. Additionally, families often pass down cultural traditions, beliefs, and customs from one generation to another.
While peer groups, clans, and communities are also important social units, they are typically larger than families and may include multiple families or individuals who are not directly related. Peer groups consist of individuals who are of similar age or have common interests, while clans are extended families with a common ancestry, and communities are groups of individuals who live in the same geographical area.
In summary, while peer groups, clans, and communities play significant roles in our society, the smallest and most fundamental unit of social organization is the family. Families provide the foundation for a person's social development, upbringing, and support.

Which of the following is not a swimming stroke ?

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The swimming stroke that is not listed among the options is the downstroke.

Let's briefly discuss the other three swimming strokes to understand why the downstroke is not considered a swimming stroke:

Crawl: Also known as freestyle, the crawl is the fastest and most commonly used stroke in competitive swimming. It involves a continuous alternating arm motion and a flutter kick. Swimmers move their arms in a windmill-like pattern, pulling the water towards them, while their legs kick in a repetitive up and down motion.

Backstroke: As the name suggests, swimmers swim on their backs, facing up. The main propulsive force in backstroke comes from the alternating arm movement, similar to the crawl stroke. The arms move in a wider arc, and the hands enter the water pinky-first. The legs perform a flutter kick, similar to that of the crawl stroke.

Breaststroke: The breaststroke is the slowest of the four competitive swimming strokes, but it is often considered the most graceful. Swimmers synchronize a frog-like kick and an arm pull to propel themselves through the water. The arms move together in a half-circle motion underwater, while the legs kick outwards and then back inwards simultaneously.

Downstroke: The term "downstroke" does not correspond to any recognized swimming stroke. It may be a term used in other contexts or in certain swimming drills, but it is not a distinct swimming stroke like the crawl, backstroke, or breaststroke.

In the bucal cavity of human beings, digestion of which of the following get started

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In the bucal cavity of human beings, digestion of carbohydrates gets started.
The bucal cavity, also known as the mouth, plays an important role in the process of digestion. When we eat food, it enters the mouth where it gets broken down into smaller pieces by our teeth through the process of chewing.
Carbohydrates are one of the main types of nutrients found in our food. They are present in foods like bread, rice, potatoes, and fruits.
In the mouth, the salivary glands produce saliva, which contains an enzyme called amylase. When we chew carbohydrates, the amylase in saliva helps to break them down into smaller molecules called sugars. This process is known as digestion.
So, in conclusion, the digestion of carbohydrates gets started in the bucal cavity of human beings.

Carbon monoxide is a source of ______ pollution.

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Carbon monoxide is a source of air pollution. When we burn fossil fuels such as gasoline, diesel, and natural gas in vehicles, power plants, and industries, carbon monoxide is released into the air. It is a colorless and odorless gas that is harmful to the environment and human health.
In our atmosphere, carbon monoxide reacts with other pollutants to form smog, which is a type of air pollution. Smog can cause respiratory problems, especially for people with asthma or other respiratory conditions.
Carbon monoxide also contributes to the greenhouse effect, which is responsible for global warming and climate change. This gas traps heat in the atmosphere, leading to the gradual increase in Earth's temperature.
So, carbon monoxide is a significant contributor to air pollution and its negative effects on both the environment and human health. It is crucial to reduce carbon monoxide emissions by using cleaner forms of energy and implementing stricter regulations for industries and vehicles.

Which of the following games is a traditional game in Nigeria before colonization ?

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The traditional game in Nigeria before colonization is the ayo game. Ayo game is a popular Mancala game played by many tribes across Nigeria. It is a board game where players take turns picking up seeds from small pits and sowing them in other pits, trying to capture as many seeds as possible. In the ayo game, each player uses a wooden board with several small pits dug into it. These pits are filled with seeds or beads. The goal of the game is to capture as many seeds as possible from your opponent's side. Players take turns and strategically sow the seeds from one pit to another in a clockwise direction. They can capture seeds when the last seed sown ends up in an empty pit on their side. Ayo game is not only a fun pastime but also a cultural game that has been played for generations in Nigeria. It is a game that helps enhance strategic thinking, concentration, and mathematical skills. Overall, ayo game is a traditional and beloved game in Nigeria that has stood the test of time and continues to be enjoyed by people of all ages.

Which of the following is a track event ?

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A track event is a type of competition that involves running, jumping, or throwing on an oval-shaped track. Out of the given options, the track event is the 100m race.
The triple jump and high jump are both field events, rather than track events. The triple jump is a jumping event that involves three consecutive phases: the hop, the step, and the jump. Athletes aim to jump as far as possible in one single attempt.
Similarly, the high jump is also a jumping event. Athletes try to leap over a horizontal bar set at a specific height without knocking it down. The higher the bar, the greater the difficulty.
The pole vault, on the other hand, involves using a long, flexible pole to propel oneself over a horizontal bar. Athletes sprint down a runway, plant the pole in a specially designed box, and use it to propel themselves over the bar.
In summary, the 100m race is the track event among the given options. It is a sprinting event where athletes compete to be the fastest over a distance of 100 meters.

Which of the following factors does not affect posture ?

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Posture is affected by factors such as age, habit, and heredity. Complexion, which refers to the natural color, texture, and appearance of the skin, does not affect posture.

How many points is required to win a badminton game ?

Answer Details

To win a game in badminton, a player or a team needs to score a certain number of points. The number of points required to win a badminton game is 21 points.
However, there are certain rules that need to be followed in order to determine the winner. The winner must also have a 2-point lead over their opponent to secure the victory.
Let me explain the scoring system more in detail. In badminton, each rally results in a point being awarded to one of the players or teams. The rally starts with a serve and ends when the shuttlecock hits the ground within the boundaries, or if a fault is committed by one of the players.
Regardless of who served, a point is awarded to the serving side every time they win a rally. If the serving side loses a rally, the serve will be handed over to the opposing side, and they will have an opportunity to score points.
The game is played until one player or team reaches 21 points, with a 2-point lead. If the score reaches a tie at 20-20, it is called a "deuce". In a deuce, players need to continue playing until a player or team gains a 2-point lead to win the game.
In summary, to win a badminton game, a player or team needs to score 21 points with a 2-point lead over the opponent.

Which of the following part of human skeleton forms the helmet that protect the human brain

Answer Details

The part of the human skeleton that forms the helmet to protect the brain is called the cranium. The cranium is made up of several bones that come together to encase and protect the brain. These bones are connected by special joints called sutures which allow for some flexibility and movement.
The cranium serves as a hard, protective shell surrounding the brain, shielding it from any potential injury. It helps absorb and distribute forces, such as those that may occur from impact or trauma to the head. Additionally, the cranium provides attachment points for various muscles and ligaments involved in head movement.
The other options, namely the fibula and tibia, are bones found in the lower limbs and are involved in supporting the body weight and facilitating movement. They are not directly involved in protecting the brain. The suture, on the other hand, is not a specific bone but refers to the tight fibrous joints between the cranial bones that contribute to the strength and structural integrity of the cranium. However, it is not the main component responsible for forming the helmet-like protection for the brain.
In summary, the cranium is the part of the human skeleton that forms the protective helmet around the brain, safeguarding it from potential injuries.