Jamb Biology Past Questions
Question 2351
The mammalian endocrine system is responsible for?
- A. transmitting impulse
- B. regulating body temperature
- C. regulating osmotic pressure of blood
- D. chemical co-ordination
- E. the manufacture of blood
Question 2352
Water retention is highest in soils which are rich in
- A. sand, poor in humus and devoid of clay
- B. clay and sand, but poor in humus
- C. clay and humus, but poor in sand
- D. clay, poor in humus and devoid of sand
- E. sand and humus, but poor in clay
Question 2353
Soil erosion CANNOT be controlled by
- A. planting cover crops
- B. contouring of sloping ground
- C. terracing of slopes
- D. laying of mulch
- E. burning of bush
Question 2354
Which of the following has the most primitive respiratory system?
- A. snail
- B. fish
- C. insect
- D. mouse
