(a) What is a sense organ?

(b)(i) State two main functions of the ear
(ii) Explain the mechanism involved in one of the functions stated in (b) (i) above.

(c) With the aid of a large labelled diagram, illustrate the eye defect of short-sight and its correction.
 

(a) State five different methods used in vegetative propagation in plants giving an example in each case. 

State five (i) advantages and (ii) disadvantages of vegetative propagation. 
 

(a) List five classes of food other than carbohydrates.

(b) Explain why glucose is taken by an athlete ready for a race rather than corn meal.

(c) Describe the test for starch.

(a) Name the four levels of organisation in living organisms.
 (ii) Explain two of the levels of organisation named in (a)(i) above
 

(a) Describe the water cycle using an annotated diagram (s) only.

(b) What is the importance of water tc living organisms?