Describe the alimentary canal of man.

5

(a)

Explain the important of soil for plant growth.

5

(a)

Explain the mechanism of photosymthesis.

5

(a)

Describe the process of urine formation in kidneys.

5

(a)

Explain the process of 'photosynthesis' in plants.List four factors which influence this process and describe how each of them affects the rate of the photosynthesis process.

5

(a)

Define the terms 'nutrients' and 'nutrients'.List two differences between 'Holozoic nutrition' and 'Saprophytic nutrition'.Give two examples of each of these two types of nutrition.

5

(a)