Search SchoolNGR

Thursday, 02 April 2026
Register . Login

Biology Past Questions and Answers

Waec Biology Questions

Question 41:
Which of the following methods is used in food preservation for a long period?
  • A Adding oil to food
  • B Exposing food to fresh air
  • C Keeping the food in a store
  • D Warming the food daily
  • E Salting and drying the food
View Answer & Explanation
Question 42:
Maize is best stored against insect attack
  • A On raised platforms
  • B In fumigated silos
  • C In a sunny area
  • D While still on the cob
  • E In humid metal tanks
View Answer & Explanation
Question 43:
Which of the following is not an effect of overcrowding on a population?
  • A Death
  • B Competition
  • C Commensalism
  • D Aggression
  • E Cannibalism
View Answer & Explanation
Question 44:
The term used in describing the effective management of national resources by man is
  • A Preservation
  • B Utilization
  • C Economics
  • D Development
  • E Conservation
View Answer & Explanation
Question 45:
Breathing roots are characteristic structures of plants growing in
  • A Mangrove swamp
  • B Desert
  • C Shrub biome
  • D Savannah
  • E Tropical rain forest
View Answer & Explanation