Jamb Biology Past Questions For Year 1991
Question 16
Which of the following are differentiated into true roots, stems and leaves
- A. Algae
- B. Schizophyta
- C. Pteridophyta
- D. Bryophyta
Question 17
Sting cells are normally found in
- A. Flatworms
- B. Hydra
- C. Snails
- D. Paramecium
Question 18
A wide pith with a ring of conducting tissue is characteristic of the root of
- A. sunflower
- B. maize
- C. bean
- D. okra
Question 19
The gill raker of fishes take part in?
- A. feeding
- B. respiration
- C. swimming
- D. diffusion
Question 20
The respiratory organ in the land snail is the
- A. radula
- B. mantle
- C. tentacle
- D. foot
