Biology Past Questions and Answers

(a) Make a labelled diagram to show the internal structure of the mammalian ear.
(b) Describe the mechanism of hearing in mammals.
(c) State two ways of caring for the ear.

(a) (i) List three components of an ecosystem (ii) Describe briefly the interaction among the components named in (a) (i).
(b) List three major steps that are usually taken in studying plants and animals in community.
(c) State the importance of each of the following in a population and explain how each affects the growth of a population:
(i) competition; (ii) pathogens; (iii)water.

The organ which is sensitive to light in Euglena is the

The organ which is sensitive to light in Euglena is the

Which of the following is a similarity between a typical animal cell and a typical plant cell?presence of