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JAMB Biology 2020 Objective — Question 13

Question 13 of 40 from the Joint Admissions and Matriculation Board (JAMB) Biology 2020 Objective paper, with the correct answer and a full explanation.

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13. Bacteria which free soil nitrogen are called (a) nitrating bacteria (b) denitrifying bacteria (c) nitrifying bacteria (d) nitrogen-fixing bacteria

  • A. A. nitrating bacteria
  • B. B. denitrifying bacteriaCorrect
  • C. C. nitrifying bacteria
  • D. D. nitrogen-fixing bacteria

Explanation

Bacteria which free soil nitrogen are called denitrifying bacteria. They convert the nitrogen in the soil to atmospheric nitrogen, a good example being pseudomonas.

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