Biology 2022 Past Questions | WAEC
which of the following statements about living things is correct?
- A. animals respire using carbon(iv)oxide as a raw material
- B. growth in plants is limited after some time
- C. most plants respond to stimulus slowly
- D. higher animals can reproduce asexually
2. Organ level of organization in living things is found in?
- A. waterleaf plant
- B. virus particle
- C. kidney
- D. spermatozoon
3.
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
- A. roots
- B. a dicotyledonous root
- C. vascular bundies
- D. stems
4.
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
- A. I
- B. II
- C. III
- D. IV
5.
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?
- A. Pith
- B. xylem
- C. Phloem
- D. endodermis
6. The organelles in cells which are also referred to as suicidal bags are the
- A. mithchondria
- B. lysosomes
- C. ribosomes
- D. nuclei
7. The process that brings about the shrinking of a spirogyra cell when placed in a strong solution is ?
- A. osmosis
- B. autolysis
- C. plasmolysis
- D. diffusion
8. The region of a plant stem in which cells divide to increase its diameter is
- A. cambium
- B. phloem
- C. xylem
- D. collenchyma
9. The total number of caudal vertebrae in animals X and Y is 4 and 27 respectively. The animals are likely to be.
- A. fish and human
- B. toad and rat
- C. toad and fish
- D. humans and rat
10. Which of the following blood components has the greatest affinity for oxygen and carbon (IV) oxide?
- A. Lymphocyte
- B. Thrombocyte
- C. Erythrocyte
- D. Blood plasma
11. 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?
- A. I and III only
- B. II and III only
- C. II and III only
- D. III and IV only
12. 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?
- A. I
- B. II
- C. III
- C. IV
13. 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?
- A. ADH, Glucagon, Oestrogen, Adrenaline
- B. Adrenaline, Glucagon, Oestrogen, ADH
- C. Glucagon,ADH, Oestrogen, Adrenaline
- D. Adrenaline, ADH, Oestrogen, Glucagon
14.
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?
- A. I
- B. II
- C. III
- D. IV
15.
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
- A. I
- B. II
- C. III
- D. IV
