JAMB Biology 2023 Objective — Question 25
Question 25 of 40 from the Joint Admissions and Matriculation Board (JAMB) Biology 2023 Objective paper, with the correct answer and a full explanation.
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The movement response of cockroach away from a light source can be described as
- A. positive phototaxis
- B. positive phototropism
- C. negative phototropism
- D. negative phototaxisCorrect
Explanation
Since the cockroach's whole body moves away from the light source, this is a taxis (not tropism, which applies to plants), and movement away from a stimulus is negative - hence negative phototaxis.
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