(a) Describe briefly the process involved in the breakdown of glucose in the cell of living organisms to produce energy (AT P)

(b) State two conditions under which glycogen can be converted to glucose to produce energy.

(c) Describe an experiment to demonstrate that oxygen is released by green plants during photosynthesis. 
 

(a) (i) Give two reasons why termites are described as social insects.
(ii) Name four castes found in the termite nest, stating one of each castes.

(b) Describe five behavioural adaptations of termites which enable them to survive in their environment. 
 

(a) Describe the process of succession in an abandoned farm land.

(b) List seven ways by which micro-organisms can -be controlled to maintain good health. 
 

(a) Explain briefly how the process of meiotic division contributes to variation in a population

(b) State Mendel's first and second laws of inheritance.

(c) A pure breeding brown coloured rat BB was crossed with a pure breeding white rat bb. By means of diagram only, show the genotypes of the offspring up to the second filial generation. 
 

1. (a) List three features which are essential for cross-pollination to take place (b) State three characteristics