Ecosystem has two components:
Correct answer: A. Biotic and abiotic
- A. Biotic and abiotic
- B. Weeds and trees
- C. Plants and animals
- D. Frogs and men
Explanation
An ecosystem combines biotic components, such as plants, animals and microorganisms, with abiotic components, such as soil, water, air and temperature. The other choices list only selected living organisms and therefore do not represent the two basic categories.
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