WAEC SSCE - Biology - 2023 (Objective)

The rate of decomposition of dead organisms is faster in the tropical rainforest than in other biomes because

A sudden change in the genetic composition of an organism is termed

Which of the following instruments is not used in measuring abiotic factors in a habitat?

Which of the following soil types have a high capillarity?

The following activities are associated with termites except

The diagram below is an illustration of a structure in the skeletal system of humans. Study it and answer the question
An individual was involved in a car accident and the illustrated structure was badly injured. Which of the following structures would most likely be affected?

The food substance that would produce the highest amount of energy is

The mouthparts of a grasshopper are adapted for

Which of the following characteristics shows discontinuous variation in plants?

The androecium in a flowering plant is a collection of

Study the list of organisms below and use them to answer the questions.
I-Hydra
II-Owl
III-Snake
IV-Snail
The arrangement of the organisms in order of increasing complexity is

The type of nutrition in which organisms take solid organic materials into their body is

Placentation in fruits is referred to as the

What is the probability that a pregnancy would result in a male child?

The diagram above is an illustration of a mango leaf drawn by a student in a Biology test. The student failed the test. Study it and answer the question.

The likely reason why the student failed the test was that the

Growth in animals differs from that in plants because growth in

Which of the following factors is the main problem facing xerophytes?

The illustration above is a genetic diagram. Study it and answer the question

What is the genotypic ratio

An example of a process that involves osmosis is the

The illustration above is a genetic diagram. Study it and answer the question below.
          What is the name of the genetic diagram?

Stunted growth and small yellow leaves in plants are symptoms of the deficiencies of

Study the list of organisms below and use them to answer the questions.
I-Hydra
II-Owl
III-Snake
IV-Snail
The Phylum of the organism labeled IV is

A vestigial structure in humans is

The capturing and digestion of insects by a pitcher plant is a special form of nutrition that is

The structure that its action could result in choking when talking and eating at the same time is

The diagrams below are illustrations of organisms in a habitat. Study them and answer the question, the producer in the diagram is

The tricuspid valve is located between the

The diagram above is an illustration of a cell in which photosynthesis takes place. Study it and answer the question. the oxygen gas formed in the cell diffuses out of the cytoplasm into the air spaces through the part labeled

Which of the following activities is against the conservation of natural resources?

Use the information below to answer the question
I - making shoes from crocodile skin
II - making tables with plastic
III - using elephant tusk for decoration
IV - using firewood for cooking

The act that should be encouraged for the conservation of wildlife and forests is

The diagrams below are illustrations of organisms in a habitat. Study them and answer the question,
The feeding relationship between the organisms labelled III and IV in the diagrams is

The diagram above is an illustration of a structure in the skeletal system of humans. Study it and answer the question
the illustrated structure is a part of the 

The diagrams above are illustrations of forms in which a particular group of organisms exist. Study them and answer the question.
in which of the illustrated forms does the organism that causes cholera exist?

A group of organisms belonging to different species that coexist in the same habitat and interact is referred to as

Paternity disputes could be resolved accurately through

Which of the following organisms would be the producer in a food chain?

Fishes survive in water mainly because they possess

Which of the following processes does not occur during photosynthesis?

Organisms that feed on dead, decaying tissues of other organisms are known as

The diagram above is an illustration of a cell in which photosynthesis takes place. Study it and answer the question

In which of the labeled parts would molecules of water and carbon (IV) oxide combine to form sugar?

Use the information below to answer the question
I - making shoes from crocodile skin
II - making tables with plastic
III - using elephant tusk for decoration
IV - using firewood for cooking
In order to avoid some of the acts that would have negative effects on conservation. Government should

The diagram above is an illustration of some structures used for gaseous exchange in humans. Study it and answer the question
The parts labeled 1, II, III, and IV respectively are

A Rhesus negative woman may experience stillbirth of the second child that is Rhesus positive because

The ability of organisms to maintain a constant internal environment is known as

The illustration above is a genetic diagram. Study it and answer the question below

What do the labels I, II, III, and IV respectively represent?                                                               

Which of the following hormones is wrongly paired with its secretory organ?

The diagrams above are illustrations of forms in which a particular group of organisms exist. Study them and answer the question.

Which group of organisms is illustrated?

The diagram above is an illustration of some structures used for gaseous exchange in humans. Study it and answer the question
the part labeled III can be found in the 

The diagram below is an illustration of a mango leaf drawn by a student in a Biology test. The student failed the test. Study it and answer the question.
which features of the diagram would have earned the student more marks if shown

The eye defect caused by an uneven curvature of the cornea or lens or both is