Waec Biology 1993 Past Questions and Answers

Question 61:

• WAEC 1993

(a) Describe the process of inhalation in man .
(b) Describe briefly the process of gaseous exchange in the shoo: system of flowering plants.
(c) Describe an experiment to demonstrate the effect of distilled water on mammalian red blood cell.

Question 62:

• WAEC 1993

(a) Give a brief description of the characteristics of the Northern Guinea Savanna.
(b) Describe how you can estimate the density of a plant species using a quadrat.