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Biology 1990 JAMB Past Questions

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36
In a savanna ecosystem the abiotic factors include
  • A. legumes, temperature and sandy soil
  • B. water, temperature and soil
  • C. minerals, oxygen and reptiles
  • D. water, soil and grasses
View Answer & Discuss (1) JAMB 1990
37
Which of the following is an omnivore?
  • A. Praying mantis
  • B. Hawk
  • C. Mouse
  • D. Grasshopper
View Answer & Discuss (5) JAMB 1990
38
which of the organisms will have the lowest population in an ecosystem?
  • A. Hawk
  • B. Cowpea
  • C. Praying mantis
  • D. Mouse
View Answer & Discuss (2) JAMB 1990
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39
The salinity of a brackish enviroment
  • A. increases immediately after rain
  • B. increase at the end of rainy season
  • C. Decrease with increase in micro-organisms
  • D. increase during dry season
View Answer & Discuss JAMB 1990
40
Physiological adaptation to very dry condition in animals is called
  • A. hibernation
  • B. aestivation
  • C. rejuvenation
  • D. xeromorphism
View Answer & Discuss (8) JAMB 1990
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