Biology Past Questions and Answers

(a) Make a labelled diagram of the vertical section of the mammalian tooth.
(b) Describe the role of the following in mammalian nutrition: (i) teeth; (ii) tongue ; (iii) saliva; (iv) stomach .
(c) Describe how to test for protein in a food sample

(a) With reference to the food chain, explain the role of the followings;
(i) green plants;
(ii) herbivores;
(iii) carnivores;
(iv) decomposers

(b) With the aid of diagram, describe the carbon cycle.

(a) What is a cell?
(b) Describe briefly the structure of DNA.
(c) Describe the process of mitosis
(d) What is the importance of mitosis to living organisms?

Which of the following organism possesses both plant and animal characteristics?

Which of the following organism possesses both plant and animal characteristics?