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Biology 1987 JAMB Past Questions

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46
Nitrifying bacteria are important because they
  • A. release nitrogen to the atmosphere
  • B. convert atmospheric nitrogen to ammonia
  • C. combine ammonia with nitrgen
  • D. oxidize ammmonium salt to nitrates
View Answer & Discuss (1) JAMB 1987
47
The process by which lime is added to clay soil is known as
  • A. sedimentation
  • B. flocculation
  • C. leaching
  • D. manuring
View Answer & Discuss (8) JAMB 1987
48

Which of the plants is likely to have broad leaves and thin cuticle?

  • A. R
  • B. S
  • C. T
  • D. U
View Answer & Discuss (10) JAMB 1987
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49

Which of the plants is likely to be desert species?

  • A. U
  • B. T
  • C. S
  • D. R
View Answer & Discuss (4) JAMB 1987
50
The flower shown above is
  • A. complete, regular, hermaphroditic with superior ovary
  • B. incomplete, regular, staminate with inferior ovary
  • C. complete, regular, hermaphroditic with inferior ovary
  • D. incomplete, irregular, pistillate with superior ovary
View Answer & Discuss (4) JAMB 1987
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