(a) Explain the term animal nutrition, [2 marks]

(b) State four functions of oestrogen in animal reproduction [4 marks]

(c) Explain each of the following methods of animal improvement: (i) selection: (ii) breeding; (iii) introduction [6 marks]

(d) What are ornamental plants? [2 marks]

(e) State four vegetative methods that could be used to propagate ornamental plants. [4 marks] 

(a) (i) identify specimens A(Clayey soil) and  B(Sandy soil) by the feel method. [2 marks]

(ii) Name two crops that would thrive well on each of specimens A and B. [2marks]
(iii) Mention three ways by which specimen B can be improved. (3 marks]

(b) (i) identify specimens C and D. (2 marks]

(ii) State three non-ways in which specimen C is important in crop production. [3 marks]

(iii) State three uses of specimen B in agriculture. [3 marks]

(a) (i) identify specimen H, I, J and K [4 marks]

(ii) State two uses of each of specimens J and k [4 marks]

(iii) State three general ways of maintaining specimens H and I [3 marks]

(iv) State four precautions to be taken when using specimen J [4 marks]

Forth maize seeds were sown on a raised bed and thirty-five seeds germinated.

(a) (i) Calculate the percentage of the maize seeds that germinated [2 marks]

(ii) What is the percentage of the maize seeds that did not germinate? [2 marks]

(b) State four conditions that could have enhanced the germination of the thirty-five seeds. [4 marks]

(c) Suggest five reasons why some of the seeds did not germinate [5 marks]

(d) Give two industrial uses of maize seeds.

a) (i) identify specimens P and R [2 marks]

Specimen P:

Specimen R:

(ii) State three reasons why the use of specimen P is not recommended in a brooder house [3 marks]

(iii) Mention two other materials that could be used in place of specimen P in a brooder house [2 marks]

(iv) What is the name given to the product formed when poultry droppings mix with specimen P? [1 mark]

(v) State four uses of the product mentioned in (a) (iv) in agricultural production [4 marks]

(b) State three ways of controlling specimen R in crop production. (3 marks]