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Saturday, 14 November 2026
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Biology Past Questions and Answers

Waec Biology Questions

Question 1666:
In which of the following insects is group instinct not displayed?
  • A Solder ants
  • B Cockroaches
  • C Honey bees
  • D Termites
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Question 1667:
The inability of an organism to adapt to its habitat can lead to
  • A Dormancy
  • B Adaptation
  • C Extinction
  • D Survival
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Question 1668:
Use the diagram above that shows the effect of nitrates on water bodies Study it carefully and answer questions.
The source of the nitrates in the diagram is termed
  • A Root nodules of legumes
  • B Cloud
  • C Fertilizers
  • D Organic matter
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Question 1669:
Use the diagram above that shows the effect of nitrates on water bodies Study it carefully and answer questions.
The phenomenon in the diagram is termed
  • A Denitrification
  • B Conservation
  • C Eutrophication
  • D Global warming
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Question 1670:
Use the diagram above that shows the effect of nitrates on water bodies Study it carefully and answer questions.
Another cause that could lead to the phenomenon in the diagram is
  • A Exhaust from cars
  • B Oil spillage
  • C Dumping of sewage
  • D Excess rainfall
View Answer & Explanation