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1906
Which of the following is responsible for the conversion of nitrites to nitrates in the nitrogen cycle?
  • A. Denitrifying bacteria
  • B. Nitrifying bacteria
  • C. Lightening
  • D. Fungi
  • E. Brown algae
View Answer & Discuss WAEC 1996
1907
Hydra captures small crustaceans by means of
  • A. pseudopodia
  • B. musculo-epithelial cells
  • C. tentacles
  • D. enteron
  • E. ectoderm
View Answer & Discuss WAEC 1996
1908
Which of the following processes is not due to interaction between the biotic and abiotic components of an
ecosystem?
  • A. Soil nutrient depletion
  • B. Condensation
  • C. Decomposition
  • D. Osmosis
  • E. Photosynthesis
View Answer & Discuss (7) WAEC 1996
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1909

The entire habits and habitat of an organism can be described as its

  • A. ecological community
  • B. ecological niche
  • C. habitat factor
  • D. biotic factor
  • E. abiotic factor
View Answer & Discuss (2) WAEC 1996
1910
Which of these is not a true characteristic of the tropical rain forest?
  • A. Vegetation consists predominantly of tall trees, with thick canopy
  • B. Forest is rich in epipphysis and climbers
  • C. Annual rainfall is less than 100 cm
  • D. interior has low light intensity, high humidity and damp floor
  • E. Fruits of trees are often large-sized and are generally without adaptation to wind dispersal
View Answer & Discuss (1) WAEC 1996
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