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Biology Past Questions

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4971

The capturing and digestion of insects by a pitcher plant is a special form of nutrition that is

  • A. heterotrophic
  • B. saprophytic
  • C. chemosynthetic
  • D. autotrophic
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4972

Paternity disputes could be resolved accurately through

  • A. finger printing
  • B. tongue rolling
  • C. DNA test
  • D. blood group
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4973

A sudden change in the genetic composition of an organism is termed

  • A. mutation
  • B. linkage
  • C. variation
  • D. epistasis
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4974

a.What is classification of living things?

b. State four ways each by which the following groups of organisms are of economic importance in their habitats:
i) fungi ii) plants.

c. complete the table below by stating five major phyla of the kingdom Animalia and give one example of each

Phyla of kingdom Animalia                            Example

 

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4975

a.Complete the table below

Element Function in plants Effect of deficiency in plants
Iron    
Molybdenum    
potassium    
copper    
nitrogen    

b.Name three classes of organic foods which are essential constituents in the diet of a mammal.

c.State two roles each of the following structures of the digestive system in humans:
 i.buccal cavity   ii, duodenum iii.stomach

d. Name the end product of adding dilute hydrochloric acid to sucrose

 

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