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WAEC Biology 2021 Objective — Question 26

Question 26 of 50 from the West African Examinations Council (WAEC) Biology 2021 Objective paper, with the correct answer and a full explanation.

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26. Autotrophic nutrition is a process whereby an organism obtains food

  • A. by utilizing its stored energy.
  • B. by synthesizing simple substances using energy.Correct
  • C. from other organisms in exchange for some products.
  • D. in a synthesized form, from other living organisms.

Explanation

Autotrophs make their own food by synthesizing simple substances (e.g. CO2 and water) using an energy source (light or chemical) — photosynthesis or chemosynthesis.

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