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206

The activities of an organism which affect the survival of another organism in a habitat can be described as

  • A. biotic factors
  • B. climatic factors
  • C. physiographic factors
  • D. edaphic factors
  • E. abiotic factors
View Answer & Discuss (2) WAEC 1989
207
Which of the following. groups of organisms feeds directly on green plants?
  • A. Producer
  • B. Decomposer
  • C. Primary consumer
  • D. Secondary consumer
  • E. Tertiary consumer
View Answer & Discuss WAEC 1989
208
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 & Discuss WAEC 1989
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209
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 & Discuss WAEC 1989
210
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 & Discuss WAEC 1989
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