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Biology 1990 WAEC Past Questions

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56
Adaptive radiation as illustrated by the variety of forms in insects can be regarded as
  • A. behavioral modification
  • B. a case of rapid population growth
  • C. a physiological process
  • D. an evidence of evolution
  • E. a population control mechanism
View Answer & Discuss (2) WAEC 1990
57
Which of the following statements about the modifications of pentadactyl fore-limb is not correct?
  • A. Wings are modified for flying in birds
  • B. Flippers are modified for grasping in sharks
  • C. Legs are modified for walking and running in antelopes
  • D. Arms are adapted for grasping and holding in human beings
  • E. Flippers are modified for swimming in whales
View Answer & Discuss (2) WAEC 1990
58
The process by which plants and animals are modified in structure, physiology and behaviour in order to survive is known as
  • A. evolution
  • B. adaptation
  • C. succession
  • D. aggregation
  • E. hibernation
View Answer & Discuss WAEC 1990
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59
What is the significance of the bee dance to other bees?
  • A. Warning signal
  • B. Presence of food
  • C. Mating signal by the male
  • D. Soaring the enemies away
  • E. Time for nuptial flight
View Answer & Discuss WAEC 1990
60
Which of the following statements is not associated with the theory of natural selection?
  • A. There is a struggle for existence
  • B. There is competition among the offsprings
  • C. The weaker offsprings are eliminated
  • D. Food and other needs are abundant
  • E. Nature selects those that survive to reproduce their kind
View Answer & Discuss WAEC 1990
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