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Which condition is a biotic factor of an aquarium ecosystem?


algae growing on the glass


amount of oxygen in the water


temperature of the water


gravel on the bottom of the aquarium

Respuesta :

algae growing on the glass.

biotic means living thing and as such, oxygen, temperature, and gravel are not.

Answer:

algae growing on the glass

Explanation:

algae is living so it would be considered a biotic factor.

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