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JAMB Biology 2005 Question 23

Question 23

Plant Responses and Hormones

When bacteria swim from cold to warm regions, this is known as

  1. A.negative chemotaxis
  2. B.positive thermotaxis
  3. C.positive phototaxis
  4. D.negative phototaxis
Show the answer and explanation

Answer: B (positive thermotaxis)

Explanation

Taxis is movement of a whole organism in response to a stimulus. Moving towards warmth is positive thermotaxis.