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Monday, 22 June 2026
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Biology Past Questions and Answers

Waec Biology Questions

Question 746:
Which of the following associations can upset the balance of nature?
  • A Epiphitism
  • B Parasitism
  • C Symbiosis
  • D Saprophytism
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Question 747:
Which of the following groups of factors do the Agama lizards compete for? I. Space II. Food III. Mates
  • A Space and food only
  • B Space and mates only
  • C Food and mates only
  • D Space, food and mates
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Question 748:
Which of the following structures in a housefly aids in the transmission of diseases in man?
  • A Hairs
  • B Spiracles
  • C Antennae
  • D Wings
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Question 749:
Which of these is not correct about the tse-tsefly and mosquito? They
  • A Harbour protozoa as disease agents
  • B Possess piercing and sucking mouth parts
  • C Have intermediate hosts
  • D Inject disease- causing organisms into the blood stream
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Question 750:
Which of these is a vector of malaria fever?
  • A Female anopheles mosquito
  • B Male anopheles mosquito
  • C Female culex mosquito
  • D Male culex mosquito
View Answer & Explanation