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Biology 1997 JAMB Past Questions

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36

Adaptive features of plants to desert conditions include?

  • A. thick barks, succulent stems and sunken stomata
  • B. thin barks, succulent stems and sunken stomata
  • C. thin barks, air floats on stems and sunken stomata
  • D. air spaces in tissues, adventitious roots and thick barks
View Answer & Discuss (13) JAMB 1997
37
The Southern Guinea Savanna differs from the Northern Guinea Savanna in that it has
  • A. lower rainfall and shorter grasses
  • B. less grasses and scattered trees
  • C. more rainfall and taller grasses
  • D. less arboreal and burrowing animals
View Answer & Discuss JAMB 1997
38
After a heavy rainfall and the formation of a large pond, the most likely sequence of changes in the vegetation of the pond is
  • A. Euglena → water lily → Spirogyra → grass
  • B. water lily → Spirogyra →grass → Euglena
  • C. Spirogyra → Euglena → grass → water lily
  • D. Euglena → Spirogyra → water lily → grass
View Answer & Discuss (23) JAMB 1997
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39
In a soil sample, the relative amouunts of the different soil particles can best be determined by the process of
  • A. filtration
  • B. centrifugation
  • C. precipitation
  • D. sedimentation
View Answer & Discuss (5) JAMB 1997
40
Which is the most important pollutant of the marine environment in Nigeria?
  • A. Insecticides
  • B. Sewage
  • C. Oil
  • D. Inorganic fertilizers
View Answer & Discuss (8) JAMB 1997
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