Post Utme Bayero University Kano Biology Past Questions and Answers

Question 16:

Thee eggs of bird contain relatively larger quantities of yolk than those of amphibians and reptiles because _____________

A. Birds are generally bigger in size
B. Embryonic development is longer in birds
C. Those of birds are fertilized internally
D. Birds laid shelled eggs.

Question 17:

Epigeal germination of a seed is characterized by _____________

A. More rapid elongation of a hypocotyl than the epicotyl
B. More rapid elongation of an epicotyl than the hypocotyl
C. Equal growth rate of both the hypocotyl and epicotyl
D. Lack of growth of the hypocotyls

Question 18:

Nervous control is different from hormonal control in that the former.

A. Involves only chemical transmission
B. Is a slower process
C. Product short-term changes
D. Has no specific pathway

Question 19:

If a nursing mother is not producing enough milk, her hormonal system is probably in deficiency in _____________

A. Prolactin
B. Testosterone
C. Thyroxine
D. Insulin.

Question 20:

The assodation between termites and the cellulose-digesting protozoans in their guts is an example of _____________

A. Saprophytism
B. Mutualism
C. Parasitism
D. Commensalism