Multiple choice

Which of the following would NOT be a biotic factor in an ecosystem?

  1. trees

  2. bacteria

  3. fungi

  4. soil
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Biotic factors are the living or once-living components of an ecosystem. Trees, bacteria, and fungi are all living organisms, whereas soil is an abiotic, non-living component.

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