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41
Species do not change in order to survive. The environment determines which organism survives to reproduce. These statements
  • A. explains theory of acquired characters
  • B. supports Jean Lamarck's theory of use and disuse
  • C. support the idea of survival of the fittest
  • D. are refuted by fossil record
  • E. imply that organisms modify their environment in order to survive
View Answer & Discuss WAEC 1991
42

Which of the following may not contribute to environmental pollution?

  • A. Solar energy radiation
  • B. Industrial waste
  • C. Waste disposal
  • D. Smoke
  • E. Nuclear power plant
View Answer & Discuss (6) WAEC 1991
43
Succession is best described as
  • A. a process whereby organisms systematically colonize a barren habitat until stable community is formed
  • B. a process whereby plant occupy a barren habitat until a suitable habitat is formed
  • C. a process whereby animals occupy a barren habitat until a suitable habitat is formed
  • D. the subsequent taking over of the land through emigration or dispersal of seeds
  • E. the replacement of weaker plants and animals by stronger ones
View Answer & Discuss WAEC 1991
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44
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 & Discuss WAEC 1991
45
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 & Discuss (4) WAEC 1991
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