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Sunday, 21 June 2026
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Biology Past Questions and Answers

Waec Biology Questions

Question 651:
The condition shown in the above diagram is due to
  • A Conversion of starch to sugar
  • B Conversion of sugar to starch
  • C Excess water in structure labelled I
  • D Presence of carbondioxide in the structure labelled I
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Question 652:
Which of the following solutions will induce the condition shown in the diagram?
  • A Hypertonic solution
  • B Hypotonic solution
  • C Isotonic solution
  • D Distilled water.
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Question 653:
Which of the following conditions will cause a decrease in body temperature?
  • A Increased metabolism
  • B Shivering
  • C Vasoconstriction of capillaries of the skin
  • D Relaxation of the erector muscles
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Question 654:
The organs constantly in touch with the liver are
  • A Pancreas, colon and caecum
  • B Duodenum and stomach
  • C Illeum, stomach and colon
  • D Stomach and gall bladder
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Question 655:
Which of the following is responsible for the increased heart beat of a boy who saw a python? increased
production of
  • A Adrenalin
  • B Insulin
  • C Pituitrin
  • D Thyroxin
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