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Biology Past Questions and Answers

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Biology Questions

Question 431:

A relationship between living organisms which is of mutual benefit is

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A Parasitism
B Saprophtism
C Ecosystem
D Symbiosis
E Commensalism

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Question 432:

Which of the following food chains is in the correct sequence?

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A Weeds â†’ Tadpole â†’ Beetles â†’ Fish â†’ Man
B Weeds → Tadpole → Fish → Beetles → Man
C Tadpole â†’ Beetles â†’Weeds â†’ Man â†’ Fish
D Man â†’ Fish â†’ Beetles â†’ Tadpole â†’ Weeds
E Fish â†’ Beetles â†’ Weeds â†’ Man â†’ Tadpoles

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Question 433:

The primary and secondary hosts respectively of bilharzia are

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A Fish and man
B Man and dog
C Snail and man
D Man and snail
E Fish and snail

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Question 434:

Which of the following is NOT caused by bacteria?

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A Cholera
B Gonorrhoea
C Tuberculosis
D Onchoceriasis
E Typhoid

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Question 435:

Tsetse fly is harmful to man because it is associated with the spread of

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A River blindness
B Malaria
C Sleeping sickness
D Leprosy
E Dysentry

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