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Biology 2002 WAEC Past Questions

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31
Ecology simply means the study of
  • A. the properties of a habitat
  • B. interrelationship between organisms and their environment
  • C. several species of plants and animals
  • D. interrelationship between plants and animals.
View Answer & Discuss (8) WAEC 2002
32
Which of the following processes removes water from the water cycle?
  • A. Condensation
  • B. Perspiration
  • C. Photosynthesis
  • D. Transpiration
View Answer & Discuss (15) WAEC 2002
33
The importance of practising crop-rotation in agriculture is to
  • A. control soil erosion
  • B. maintain the fertility of the soil
  • C. improve the nutritional value of crops
  • D. ensure growth of cash crops
View Answer & Discuss (1) WAEC 2002
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34
In any food chain, the first member must be a
  • A. carnivore
  • B. herbivore
  • C. zooplankton
  • D. autotroph
View Answer & Discuss (1) WAEC 2002
35
Which of the following measures is most likely to cause a damage to the ecosystem in the control of pests
and weeds?
  • A. Use of ladybird insects to feed on aphids
  • B. introduction of bacterium to kill larvae of butterfly
  • C. Introduction of Tilapia fish in ponds to feed on mosquito larvae
  • D. Spraying insecticides to destroy cotton- stainers in a cotton-field
View Answer & Discuss (2) WAEC 2002
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