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WAEC Biology 2017 Objective — Question 7

Question 7 of 50 from the West African Examinations Council (WAEC) Biology 2017 Objective paper, with the correct answer and a full explanation.

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The organism that can carry out both autotrophic and heterotrophic modes of nutrition is

  • A. A. Chlamydomonas
  • B. B. Endorina
  • C. C. EuglenaCorrect
  • D. D. Spirogyra

Explanation

Euglena can carry out both autotrophic and heterotrophic modes of nutrition. When there is light, it photosynthesizes; it is also able to carry out holozoic feeding in the absence of sunlight, since it has a gullet to ingest food particles.

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