The key event in the transition of the amphibians from water to land is the ________

replacement of the gills with lungs

possession of tympanic membrane

JAMB UTME - Biology - 2017 | Green Bridge CBT

Pergunta 1 Relatório

Use the diagram to answer the question that follows:

The part labelled I is the ________

carpel

sepal

petal

stamen

Detalhes da Resposta

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Internal Structure Of A Flowering Plant

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Pergunta 2 Relatório

Which scenario would cause a covalent bond to form?

Two atoms share electrons so they can fill their outer shells

The constant motion of electrons and the creation of charge imbalances bonds two molecules together

A hydrogen atom with a slight positive charge is attracted to a negative charge of another molecule or atom

One atom loses one or more electrons and the other atom gains one or more electrons

Detalhes da Resposta

The scenario that would cause a covalent bond to form is when two atoms share electrons so they can fill their outer shells. In a covalent bond, atoms share electrons to achieve a stable electron configuration, which means having a complete outermost energy level. This sharing of electrons allows both atoms to have a full outer shell, making them more stable and less likely to react with other atoms. Covalent bonds are typically formed between non-metal atoms, as they tend to have a greater affinity for electrons and are more likely to share them with other atoms.

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Identification Of Organisms Using Biological Keys

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Pergunta 3 Relatório

Use the diagram to answer the question that follows:

The instrument is used to measure

atmospheric pressure

relative humidity

direction of wind

speed of wind

Detalhes da Resposta

An anemometer is a device used for measuring wind speed, and is also a common weather station instrument.

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Classification

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Pergunta 4 Relatório

The level of organization of Amoeba and Euglena cell is ________?

organ

system

cell

tissue

Detalhes da Resposta

The level of organization of Amoeba and Euglena cells is "cell." Both Amoeba and Euglena are single-celled organisms, meaning that they are made up of only one cell. This single cell contains all the necessary structures and functions needed to carry out the organism's life processes, such as obtaining nutrients, reproducing, and responding to the environment. Therefore, the level of organization for Amoeba and Euglena cells is at the cellular level. They do not have specialized organs or tissues, nor do they have complex systems of organs working together to carry out specific functions, which are characteristics of higher levels of organization found in more complex organisms.

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Forms In Which Living Cells Exist

Cell Structure

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Pergunta 5 Relatório

The protista that is a producer is an aquatic food chain is

trypanosome

paramecium

chamydomonas

amoeba

Detalhes da Resposta

The protista that is a producer in an aquatic food chain is called "Chlamydomonas". Chlamydomonas is a unicellular organism that belongs to the kingdom Protista and is commonly found in freshwater environments such as ponds and lakes. It is a type of algae that performs photosynthesis, which means that it uses energy from sunlight to produce its own food. In an aquatic food chain, Chlamydomonas plays a vital role as a primary producer. It provides energy and nutrients to other organisms in the food chain, such as small aquatic animals like zooplankton, which in turn are eaten by larger predators like fish. Without Chlamydomonas and other primary producers, the food chain would collapse and the entire ecosystem would be negatively affected.

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Amoeba, Paramecium, And Euglena

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Pergunta 6 Relatório

Which of the following is an example of active transport?

Oxygen exchanging between red blood cells and liver cells

Carbon dioxide exchanging between muscle cells and red blood cells

Water moving out of the small intestine

Sodium being reabsorbed in the kidney

Detalhes da Resposta

Although sodium ions are small, their charge prevents them from moving across the cell membrane through simple diffusion. They must be transported using active transport.

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Evolution Among The Monera, Protista, Fungi, Plantar and Animalia

Transport

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Pergunta 7 Relatório

Food chain refers to the feeding relationships between animals in a ______?

Family

phylum

community

group

Detalhes da Resposta

Food chain refers to the sequence of transfers of matter and energy in the form of food from organism to organism. Food chains intertwine locally into a food web because most organisms consume more than one type of animal or plant. Plants, which convert solar energy to food by photosynthesis, are the primary food source. In a predator chain, a plant-eating animal is eaten by a flesh-eating animal. In a parasite chain, a smaller organism consumes part of a larger host and may itself be parasitized by even smaller organisms.

In a saprophytic chain, microorganisms live on dead organic matter.

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Food Webs And Trophic Levels

Ecosystem

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Pergunta 8 Relatório

The flame cells are used for excretion in

Fluke

Nematode

Bacteria

Volvox

Detalhes da Resposta

A flame cell is a specialized excretory cell found in the simplest freshwater invertebrates, including flatworms (fluke, planaria)

Flame cells function like a kidney, removing waste materials.
Excretion of ammonia waste through the body wall, and is not associated with any specific organs

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Ler a nota de aula em Excretory Systems And Mechanisms; Types Of Excretory Systems (WAEC)

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Ler a nota de aula em Nervous Coordination (WAEC)

Animal Nutrition

Excretory Systems And Mechanisms; Types Of Excretory Systems

Amoeba, Paramecium, And Euglena

Nervous Coordination

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Pergunta 9 Relatório

Size, colour and fingerprints are examples of ______

physiological variation

discontinuous variation

morphological variation

adaptive variation

Detalhes da Resposta

Size, color, and fingerprints are examples of morphological variation. Morphological variation refers to differences in the physical appearance or structure of individuals within a species. This type of variation can be caused by genetic factors, environmental factors, or a combination of both. In the case of size, genetic factors can determine an individual's height or weight, while environmental factors such as nutrition can also play a role. Color variations can also be influenced by genetics as well as environmental factors such as diet or exposure to sunlight. Fingerprints, on the other hand, are determined by genetic factors and do not change throughout an individual's lifetime. Overall, morphological variation can be used to distinguish individuals within a species, and in some cases, can provide information about an individual's genetic makeup or environmental history.

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Physiological Variations

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Pergunta 10 Relatório

The level of organism in spirogyra and volvox is

organ

system

cell

Tissue

Detalhes da Resposta

The level of organization in Spirogyra and Volvox is cell. Spirogyra is a type of green algae that consists of long, thin, spirally coiled filaments. Each filament is made up of many individual cells. Volvox is a type of green algae that forms spherical colonies. The colonies are made up of many individual cells that are organized into a multicellular structure. Both Spirogyra and Volvox are examples of organisms that are made up of individual cells. They do not have tissues or organs, which are structures made up of multiple cells that perform specific functions. They also do not have systems, which are groups of organs that work together to perform a particular function.

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Pergunta 11 Relatório

Which of the following choices correctly describes the composition of the cell membrane?

contains only lipids

contains lipids and protein

contains lipids and cytosol

contains only proteins

Detalhes da Resposta

The correct choice is "contains lipids and proteins." The cell membrane is the outermost layer of the cell that separates the internal environment of the cell from the external environment. It is composed mainly of two types of molecules: lipids and proteins. The lipids in the cell membrane are primarily phospholipids, which have a hydrophilic (water-loving) head and a hydrophobic (water-fearing) tail. These lipids are arranged in a bilayer, with the hydrophobic tails facing each other and the hydrophilic heads facing outward towards the watery environments on either side of the membrane. The proteins in the cell membrane serve a variety of functions, including transport of molecules across the membrane, cell signaling, and structural support. Some proteins span the entire membrane, while others are only present on one side. The cell membrane also contains small amounts of carbohydrates and other molecules, but lipids and proteins are the two main components.

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Nucleic Acids

Cell Structure

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Pergunta 12 Relatório

Which of the following is a characteristics of a bacteria except _______?

they can be seen under microscope

they range from 0.5 µ m in diameter

They are grouped accordingly to their cell shape

they do not cause disease

Detalhes da Resposta

The characteristic of bacteria that does not fit with the others listed is "they do not cause disease." Bacteria are unicellular microorganisms that can be seen under a microscope. They vary in size, but most range from 0.5 µm to 5 µm in diameter. Bacteria can be grouped according to their cell shape, which can be cocci (spherical), bacilli (rod-shaped), or spirilla (spiral-shaped). While some bacteria can cause disease, not all bacteria are harmful. In fact, many types of bacteria are beneficial and essential for human and environmental health. For example, some bacteria help with digestion, while others are used to break down waste materials. Therefore, it is incorrect to assume that all bacteria are disease-causing organisms.

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Physiological Variations

Spirogyra And Rhizopus

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Pergunta 13 Relatório

Red blood cells are also known as _________?

erythrocytes

thrombocytes

phagocytes

leucocytes

Detalhes da Resposta

Red blood cells are also known as erythrocytes. Erythrocytes are cells in the blood that are responsible for carrying oxygen from the lungs to the rest of the body, and for carrying carbon dioxide from the body to the lungs to be expelled. They are shaped like disks and have a flexible structure, allowing them to move easily through the narrowest blood vessels. They also contain a protein called hemoglobin, which binds to oxygen and gives red blood cells their characteristic red color.

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Pergunta 14 Relatório

What is the primary function of cofactors?

To aid in enzyme function

To synthesize enzymes

To inhibit enzymes

To break down old enzymes

Detalhes da Resposta

Most enzymes do not function optimally, or even at all, unless bound to other non-protein helper molecules called cofactors.

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Cell Structure

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Pergunta 15 Relatório

The feeding relationship among a set of members of a community is referred to as _______?

a food web

pyramid of energy

a food chain

pyramid of member

Detalhes da Resposta

The feeding relationship among a set of members of a community is referred to as a "food chain." A food chain is a linear sequence of organisms where each member of the sequence is food for the next member. For example, a simple food chain could consist of grass as the producer, a grasshopper as the primary consumer, a bird as the secondary consumer, and a snake as the tertiary consumer. The grass is eaten by the grasshopper, which is then eaten by the bird, which is then eaten by the snake. A food web, on the other hand, is a more complex model that shows the interconnectedness of multiple food chains within an ecosystem. A pyramid of energy is a graphical representation of the amount of energy transferred between trophic levels in a food chain or food web, while a pyramid of members is not a commonly used term in ecology.

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Pergunta 16 Relatório

In mosses the structure which performs the function of water absorption is the _________?

root hairs

rhizoids

capsule

hyphae

Detalhes da Resposta

In mosses, the structure that performs the function of water absorption is the rhizoids. Rhizoids are thin, hair-like structures that grow from the lower surface of the moss and penetrate into the soil or substrate. They do not have the specialized tissues that are found in true roots, such as root hairs, but they function in a similar way by absorbing water and minerals from the environment. Rhizoids also help to anchor the moss to its substrate, preventing it from being swept away by wind or water.

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Pergunta 17 Relatório

Carbon (iv) oxide is added to the atmosphere when ________?

plants build-up organic compounds

plants absorb mineral salts

sugars are completely broken down in animals

there is thunderstorm

Detalhes da Resposta

Plant build of of organic compounds such as oil, coal and gas is a great source of emission of carbon dioxide into the atmosphere
Human activities such as the burning of oil, coal and gas, as well as deforestation are the primary cause of the increased carbon dioxide concentrations in the atmosphere.
Other source such has respiration by animals, thunderstorm release carbon dioxide in smaller quantities compare to 87% of carbon dioxide emission from plants build-up organic compounds through human activities

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Modes Of Nutrition

Plant Nutrition

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Pergunta 18 Relatório

Coloration of the eye is ______ variation

physiological

morphological

adaptive

recessive

Detalhes da Resposta

Eye coloration is a caused by morphological variation

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Physiological Variations

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Pergunta 19 Relatório

A bacteria that is spherically shaped is called?

diplobacillus

coccus

bacillus

vibrio

Detalhes da Resposta

A bacteria that is spherically shaped is called a coccus. Bacteria can come in different shapes, and the shape of a bacterium is used to classify it into different groups. Coccus is a type of bacteria that is rounded or spherical in shape. Examples of coccus bacteria include Staphylococcus, which can cause skin infections, and Streptococcus, which can cause strep throat and other illnesses.

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Pergunta 20 Relatório

An example of organism which exists as a colony is

Volvox

paramecium

euglena

chlamydomonas

Detalhes da Resposta

An example of an organism that exists as a colony is Volvox. Volvox is a green alga that forms spherical colonies made up of hundreds to thousands of individual cells. The cells work together to perform functions such as movement and reproduction, giving the appearance of a single organism. However, each cell is still capable of functioning independently. This is an example of colonial organization, where individuals come together to form a larger entity that acts as a single organism.

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Forms In Which Living Cells Exist

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Pergunta 21 Relatório

Insects that goes through adult stage without becoming pupa are except ________

crickets

cockroach

grasshopper

bees

Detalhes da Resposta

The first stage of incomplete metamorphosis is the egg. During this time, the insect will hatch into a form called a nymph.

The nymph is basically a small version of the adult insect.

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Heredity

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Pergunta 22 Relatório

The following are example of morphological variation except

size

ability to taste PTC

color

fingerprint

Detalhes da Resposta

Morphological variation includes aspects of the outward appearance i.e shape, structure, color, pattern, size which is in contrast to physiology variation which deals primarily with function.

Morphological variation arises from a number of factors which can be bluntly classified as either genetic or environmental implanted into the process of evolution.

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Morphological Variations In The Physical Appearance Of Individuals

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Pergunta 23 Relatório

The possession of scales, laying of eggs with shells and bony structure of the head are characteristics shared by

birds and reptiles

fishes and birds

reptiles and fishes

birds and molluscs

Detalhes da Resposta

The possession of scales, laying of eggs with shells, and bony structure of the head are characteristics shared by birds and reptiles. Scales are small, hard, and flattened structures that cover the skin of animals. Both birds and reptiles have scales, although they are modified differently in each group. For example, the scales of birds are found on their legs and feet, and they are made of keratin, which is the same material that makes up our hair and nails. In contrast, the scales of reptiles cover their entire body and are made of a variety of materials, including keratin and bone. Both birds and reptiles lay eggs with shells, which protect the developing embryo and provide a source of nutrients. The shells of bird eggs are hard and calcified, while those of reptile eggs can be hard or leathery, depending on the species. Finally, both birds and reptiles have a bony structure in their head called the skull. The skull protects the brain and provides a surface for muscle attachment. The skulls of birds and reptiles are both specialized for their respective lifestyles, with features such as a beak in birds and a long snout in many reptiles. So, in summary, the possession of scales, laying of eggs with shells, and bony structure of the head are characteristics shared by birds and reptiles.

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Classification

Sense Organs (Nose, Tongue & Skin)

Support And Movement

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Pergunta 24 Relatório

Nitrogen is released into the atmosphere when ________

plants absorbs mineral salt

sugar is completely broken down

through plant uptake

when lightning strike

Detalhes da Resposta

Nitrogen is essential to all living systems, which makes the nitrogen cycle one of Earth's most important nutrient cycles.

Atmospheric nitrogen becomes part of living organisms in two ways. The first is through bacteria in the soil that form nitrates out of nitrogen in the air. The second is through lightning. During electrical storms, large amounts of nitrogen are oxidized and united with water to produce an acid that falls to Earth in rainfall and deposits nitrates in the soil.

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Nitrogen Cycle

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Pergunta 25 Relatório

The host of Taenia Solium is _________

cow

pig

sheep

dog

Detalhes da Resposta

The host of Taenia solium, also known as the pork tapeworm, is the pig. Taenia solium is a type of tapeworm that can live in the intestines of humans and pigs. Pigs become infected with the tapeworm when they ingest the eggs of the parasite, which can be present in contaminated food or water. Once inside the pig's digestive system, the tapeworm larvae hatch and penetrate the intestinal wall, then migrate to the pig's muscles and form cysts, which can be seen as small white spots in the meat. If a person eats undercooked pork that contains cysts of Taenia solium, they can become infected with the tapeworm. Once inside the human digestive system, the tapeworm can grow up to several meters long and attach itself to the intestinal wall, where it feeds on nutrients from the host's food. Therefore, it is essential to cook pork thoroughly and practice good hygiene to prevent infection with Taenia solium.

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Pergunta 26 Relatório

The appendicular skeleton comprises of

pectoral and pelvic girdles

forelimbs, skull and pectoral girdle

lungs and ribs

skull and the vertebral column

Detalhes da Resposta

The appendicular skeleton includes the bones that make up the arms, legs, and the girdles (shoulder and hip) that attach them to the rest of the body. So, the correct option is "pectoral and pelvic girdles" and "forelimbs". The pectoral girdle is made up of the scapula (shoulder blade) and the clavicle (collarbone). The pelvic girdle is made up of the two hip bones. The forelimbs consist of the humerus (upper arm bone), radius and ulna (lower arm bones), and the bones of the hand (carpals, metacarpals, and phalanges). Together, the bones of the appendicular skeleton help us move around and carry out a wide range of physical activities, from running and jumping to manipulating objects with our hands.

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Tissues And Supporting Systems:

Cell Structure

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Pergunta 27 Relatório

Which of the following scenarios is an example of cohesion?

Water molecules stick to the surface of a mirror.

Water sticks to the walls of blood vessels.

Water molecules stay on the tip of a pine needle because the water is attracted to the surface of the needle.

Water molecules stick to one another and form a bead

Detalhes da Resposta

Cohesion is an ability of water molecule to stick to one another due to the presence of hydrogen bonding

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Properties And Functions Of The Living Cell

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Pergunta 28 Relatório

When an ovary is placed on the receptacle above the other floral parts it is referred to as

half inferior ovary

superior ovary

inferior ovary

half superior ovary

Detalhes da Resposta

When an ovary is placed on the receptacle above the other floral parts, it is referred to as a "superior ovary". In a flower, the ovary is the part that contains the ovules, which will develop into seeds after fertilization. The ovary is typically located at the base of the flower, below the other floral parts like the petals, sepals, and stamens. In some flowers, however, the ovary is situated on top of the receptacle, which is the part of the stem that supports the flower. This type of ovary is called a "superior ovary". It is said to be superior because it is located above the other floral parts. This arrangement of the ovary can have implications for the structure of the rest of the flower. For example, if the petals, sepals, and stamens are attached to the receptacle below the ovary, they are said to be "epigynous". If they are attached to the receptacle above the ovary, they are said to be "hypogynous". These terms refer to the relative positions of the floral parts and can be used to describe the overall structure of the flower.

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Nutrition

Internal Structure Of A Flowering Plant

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Pergunta 29 Relatório

The common thing in plant and animal cell is

chloroplast

cell wall

nucleus

centrioles

Detalhes da Resposta

The common thing that both plant and animal cells have is the nucleus. The nucleus is a membrane-bound organelle that contains the genetic material of the cell, in the form of DNA. It is often called the "control center" of the cell because it regulates all of the cell's activities. Both plant and animal cells have a nucleus, although there are some differences between the two. For example, plant cells have a cell wall and chloroplasts, which animal cells do not have. Animal cells, on the other hand, have centrioles, which plant cells do not have. In summary, while there are many differences between plant and animal cells, the one thing they have in common is the nucleus.

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Support And Movement

Cell Structure

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Pergunta 30 Relatório

Use the diagram to answer the question that follows:

The structure is adapted for

omnivores

herbivores

canivores

omnivores and canivore

Detalhes da Resposta

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Nutrition

Adaptive Colouration

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Pergunta 31 Relatório

The type of nutrition exhibited when organism lives on the body surface or inside the body of another type of organism is

Holozoic

parasitic

saprohytic

carnivores

Detalhes da Resposta

The type of nutrition exhibited when an organism lives on the body surface or inside the body of another type of organism is called parasitic nutrition. Parasitic nutrition involves an organism, called a parasite, feeding on or deriving nutrients from another organism, called a host. The parasite benefits from the relationship, but the host is usually harmed or even killed. Parasites can live on the body surface of the host (ectoparasites) or inside the host's body (endoparasites). Examples of parasites include tapeworms, fleas, ticks, and lice. These organisms rely on their hosts for survival and reproduction, and can cause a range of diseases and health problems in the host.

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Animal Nutrition

Classification

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Pergunta 32 Relatório

How does an enzyme affect the rate of a reaction?

It lowers the activation energy of the reaction, increasing the reaction rate.

It raises the activation energy of the reaction, decreasing the reaction rate.

It lowers the activation energy of the reaction, decreasing the reaction rate.

It raises the activation energy of the reaction, increasing the reaction rate.

Detalhes da Resposta

An enzyme is a protein that acts as a catalyst in biochemical reactions. Enzymes work by lowering the activation energy required for a reaction to occur. Activation energy is the minimum amount of energy needed to start a chemical reaction. By lowering the activation energy, enzymes make it easier for reactant molecules to form the necessary chemical bonds and undergo the reaction, leading to a faster reaction rate. This means that the correct answer is: "It lowers the activation energy of the reaction, increasing the reaction rate."

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Protein Synthesis

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Pergunta 33 Relatório

The joint between the femur and tibia is known as ________?

hinge joint

ball-and-socket joint

pivot joint

gliding joint

Detalhes da Resposta

The knee joint is one of the strongest and most important joints in the human body. It allows the lower leg to move relative to the thigh while supporting the body’s weight.

Movements at the knee joint are essential to many everyday activities, including walking, running, sitting and standing.

The knee, also known as the hinge joint(tibiofemoral joint) formed between three bones: the femur, tibia, and patella.

A gliding joint, also known as a plane joint or planar joint, is a common type ofjoint formed between bones that meet at flat or nearly flat articular surfaces.

Pivot joint, also called rotary joint is a freely moveable joint that allows only rotary movement around a single axis. Pivot joints also provide for the twisting movement of the bones of the forearm (radius and ulna) against the upper arm.

The ball and socket joint (or spheroidal joint) is a type of synovial joint which enables the bone to move in many places (nearly all directions). These are found in the hip.

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Irritability As A Basic Characteristic Of Protoplasm

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Pergunta 34 Relatório

The modification in structure, physiology and behaviour of plant and animal is called ______

adaption

evolution

variation

succession

Detalhes da Resposta

The modification in structure, physiology and behaviour of plant and animal is called adaptation. Adaptation refers to the changes that occur in living organisms in response to the challenges presented by their environment. These changes can be physical, such as the development of longer legs or sharper claws, or behavioral, such as the development of new hunting strategies or social behaviors. Adaptations can occur over short periods of time, such as within the lifetime of an individual organism, or over longer periods of time, such as across multiple generations. The process of adaptation allows organisms to survive and thrive in their environments, and is a key mechanism of evolution, the process by which species change over time.

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Structural Adaptation For Survival

Variation In Population

Growth

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Pergunta 35 Relatório

The lungs of the lung fish is an adaptation for respiration _______?

to complement gills while in water

to complement gills while on land

while on land

while in water

Detalhes da Resposta

The lungs of the lungfish are an adaptation for respiration while on land. Lungfish are a unique group of fish that can survive in both water and on land. While in water, they use their gills to extract oxygen from the water, but when they are on land, they use their lungs to extract oxygen from the air. This ability to use both gills and lungs makes lungfish well adapted to survive in environments where water availability can fluctuate, such as in shallow waters or temporary ponds that may dry out seasonally. Thus, the lungs of lungfish are an important adaptation for respiration while on land, allowing them to breathe air and survive in their changing aquatic environments.

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Respiration

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Pergunta 36 Relatório

The appendicular skeleton is made up of the

limbs

skull and limbs

phalanges

ulna and radius

girdles and limbs

Detalhes da Resposta

The appendicular skeleton is made up of the girdles and limbs. This means it includes the bones that form the pelvic girdle (the hip bones) and the shoulder girdle (the collarbone and shoulder blade) as well as the bones in the arms and legs. Basically, the appendicular skeleton is everything that is attached to the central part of the skeleton (the axial skeleton) and helps us move our limbs and make our movements more flexible and agile.

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Organization Of Life

Properties And Functions Of The Living Cell

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Pergunta 37 Relatório

Agglutination is the _______ of the ________

coagulation, white bloodcell

coagulation, water

white blood cells, red blood cell

coagulation, red blood cell

Detalhes da Resposta

The clumping of cells such as bacteria or red blood cells in the presence of an antibody or complement.

During blood transfusions, the antibodies react with the transfused blood group(if its of different blood group), the erythrocytes clump up and stick together causing them to agglutinate

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Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals

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Pergunta 38 Relatório

Gregor Mendel is regarded as the father of ______

variation

genetics

mycology

natural selection

Detalhes da Resposta

Gregor Mendel is regarded as the father of genetics. Mendel was a monk who conducted experiments with pea plants in the mid-19th century. He discovered that certain traits, such as the color of a pea or the height of a plant, are determined by "factors" that are passed down from parent to offspring. These factors are now known as genes, which are made up of DNA and serve as the basic units of heredity. Mendel's experiments and observations led him to formulate the laws of inheritance, which describe how genes are passed down from generation to generation. His work laid the foundation for modern genetics and helped establish the idea that traits are determined by specific genes. Mendel's discoveries had a profound impact on the scientific community and are now recognized as one of the most important breakthroughs in the history of biology. As a result, he is commonly referred to as the father of genetics.

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Heredity

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Pergunta 39 Relatório

The product after the union of the male and female gamete in animals is called

sperm

egg

embryo

zygote

Detalhes da Resposta

The product after the union of the male and female gamete in animals is called a zygote. A gamete is a specialized reproductive cell, either a sperm in males or an egg in females, that contains half the number of chromosomes as a regular body cell. When a sperm and an egg join together during fertilization, they form a single cell called a zygote, which has the full number of chromosomes and contains all the genetic information necessary to form a new organism. The zygote then divides and grows into an embryo, which will eventually develop into a mature animal.

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Support And Movement

Co-ordination And Control

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Pergunta 40 Relatório

The biome that is characterized with large herbivores, few and scattered fire resistant trees is

savanna

tropical rain forest

montane forest

desert

Detalhes da Resposta

The biome that is characterized by large herbivores, few and scattered fire-resistant trees is the savanna. Savannas are grasslands with scattered trees. They are found in many parts of the world, including Africa, South America, and Australia. Large herbivores, such as zebras, elephants, and giraffes, roam the savanna and feed on the grass. The few trees that grow in the savanna are often fire-resistant, meaning they can survive fires that occur naturally in the area. The combination of grass and scattered trees makes the savanna a unique and important ecosystem.

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Ecosystem

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