WAEC SSCE - Biology - 2022 (Objective)

The diagram above is an illustration of some parts of a mammalian ear. Study it and answer this question.

The middle ear is connected to the pharynx by the part labelled

Use the following processes to answer this question.
I-Ribs move upward and outward

II- Diaphragm relaxes

IIl-Volume of thorax increases

IV-Air is forced out of the lungs

which of the following processes is a direct result of contraction of the intercostal muscles?

The diagrams above are illustrations of two different cells involved in biological processing in mammals. Study them and answer this question.

Which of the following statements about P and Q is correct?

Study the food chain illustrated below and use it to answer this question.

J-K-L-M-N

which of the following statements about organism L is correct?

Diagram J is a protease while diagrams K,L,M, and N are food substances, study them and answer this question.

Protease J would react with the particular illustrated substance because enzymes? 

The diagram above is an illustration of some parts of a mammalian ear. Study it and answer this question.

The parts labelled I are the?

which of the following statements about living things is correct?

The table above shows the effect of hormones I,II,III and IV on some parts of the human body. Where (?) represents effects and (X) represents no effect of hormone on the corresponding part of the body. study it and answer this question. 
 

Which of the following hormones are l, II, Ill and IV respectively?

The diagram below is an illustration of an experiment on sedimentation of soil, use it to answer this question.

The part labelled IV is 

Study the food chain illustrated below and use it to answer this question.

J-K-L-M-N

The position occupied by each of organisms  J K L M N in the food chain is known as the 

The diagrams above are illustrations of two different cells involved in biological processing in mammals. Study them and answer this question.

If the number of chromosomes in the skin cells of mammals is 46, how many chromosomes would be found in P and Q respectively?

Diagrams X and Y above are illustrations of transverse sections of a part of plants, Study them and answer this question.

The part responsible for conducting water and dissolved mineral salts from the soil to the leaves is labelled

Diagram J is a protease while diagrams K,L,M, and N are food substances, study them and answer this question.

Protease J would react with the particular illustrated substance because enzymes? 

Use the following processes to answer this question.
I-Ribs move upward and outward

II- Diaphragm relaxes

IIl-Volume of thorax increases

IV-Air is forced out of the lungs

 Which of the processes take place during inspiration?

The diagram below is an illustration of an experiment on sedimentation of soil, use it to answer this question.

The organic component of the soil is labelled

The diagrams above are illustrations of two different cells involved in biological processing in mammals. Study them and answer this question.

Which parts of P and Q fuse to complete the biological process?

The diagram above is an illustration of some parts of a mammalian ear. Study it and answer this question.

Which of the parts are correctly grouped?

Diagrams X  and  Y above are illustrations of transverse sections of a part of plants. study them and answer this question

which of the following statements is not correct?  Diagrams X and Y are sections of  

Study the food chain illustrated below and use it to answer this question.

J-K-L-M-N

Organism J is normally sustained by energy from?

 The table above shows the effect of hormones I,II,III and IV on some parts of the human body. Where (✓) represents effects and (X) represents no effect of hormone on the corresponding part of the body. study it and answer this question. 

The hormone responsible for anxiety is?

Diagrams X and Y above are illustrations of transverse sections of a part of plants, Study them and answer this question.

The part labelled Il is the?

Diagram J is a protease while diagrams K,L,M, and N are food substances, study them and answer this question.

After a reaction between protease J and the food substance, the end product would be