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19 votes
19 votes
Which list includes only biotic parts of an ecosystem?

A. Decomposers, soil, nutrients
B. Soil, water, air
C. Mammals, birds, oxygen
D. Algae, grasses, animals

User Skrew
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1 Answer

19 votes
19 votes
The correct answer is B. Soil, water, air
User Godlygeek
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