(a) (i) List three forms in which living cells exist

(ii) Give one example each of the forms listed in 1 (a)(a)

(b) Make a diagram, 6 cm — 10 cm long, of a typical plant cell and label fully

(c) (i) In a tabular form, state three differences between a plant cell and animal cell.

(ii) State three similarities between a plant cell and animal cell. 
 

(a) In sequence, name the organs that constitute the alimentary canal of humans

(b) State: (i) three structural differences; (ii) three structural similarities; between the alimentary canal of a bird and human.

(c) Explain briefly how the dentition of herbivores is adapted for feeding

(d) State two roles of the pancreas in digestion 

(a) (i) What is a habitat?

(ii) Explain briefly three roles of a decomposer in an ecosystem.

(b) Explain briefly energy flow in a freshwater habitat.

(c) (i) State three harmful effects or microorganisms to plants

(ii) State six beneficial effects of microorganism to humans. 

(a) (i) Explain the term agglutination as used in blood transfusion.
(ii) The table below represents blood transfusion between blood donors and recipients. 

 
(b) Explain how each of the following organisms are adapted for obtaining food.
(i) Mosquito larva
(ii) Dodder plant
(iii) Grasshopper

 (a) State two difference between tactic and nastic movements in plants.

(b) Give two examples each of organisms that show:
(i) tactic movement
(ii) nastic movement

(c) (i) State three ways of caring for the mammalian skin.

(ii) List three stimuli to which the mammalian skin is sensitive.

(d) State five effects of high temperature on a terrestrial habitat.

(e) (i) What is courtship behaviour in animals?
(ii) List three courtship behaviours in animals.

(f) Name three organisms that carry out holozoic mode of nutrition.

(g) Explain briefly how fingerprinting can be used to detect crime.