Multiple choice

Which of the following organisms is called autotroph?

  1. Earthworm

  2. Grass

  3. Cow

  4. Human
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Grass is an autotroph because it produces its own food through photosynthesis, using sunlight, water, and CO2. Autotrophs form the base of most food chains. Earthworms, cows, and humans are heterotrophs that must consume other organisms for energy.

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