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Friday, 12 June 2026
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Biology Past Questions and Answers

Waec Biology Questions

Question 181:
Predators are beneficial in pest control because they
  • A Are natural enemies of small mammals
  • B Devour farm animals
  • C Feed on pests of crops
  • D Prey on game animal
  • E Compete for food with the pests
View Answer & Explanation
Question 182:
I.Plasmodium II. Vibro Choleroe III. Gonococcus sp IV. Poliomyelitis virus V. Syphilis bacteria
which of the following organism are transmitted by houseflies?
  • A I and II only
  • B II and V only
  • C III and IV only
  • D II and IV only
  • E III and V only
View Answer & Explanation
Question 183:
The practice of warming soup regularly as it concerns food preservation is essentially to
  • A Retain the taste
  • B Help to break down cellulose
  • C Remove excess water
  • D Kill the bacteria in it
  • E Raise the temperature
View Answer & Explanation
Question 184:
Agglutination occurs in blood transfusion when the
  • A Donor and the recipient belong to the same blood group
  • B Same antibodies from donor and recipient fuse together
  • C Donor and the recipient belong to different race
  • D Recipient is not a universal recipient
  • E Antigens and anitbody in the donor and the recipient react
View Answer & Explanation
Question 185:
Which of the following is not a way of conserving natural resources?
  • A Controlling farming practice
  • B Establishing forest reserve
  • C Establishing of parks and gardens
  • D Encouraging poaching in game reserve
  • E Protecting endangered species
View Answer & Explanation