Question

identify whether each of the following is a biotic or abiotic factor.
bear:
rock:
dead log:
grass:
sunlight:
done

Explanation:

Bear:

Biotic factors are living or once - living components of an ecosystem. A bear is a living organism, so it is a biotic factor.

Abiotic factors are non - living components of an ecosystem. A rock is a non - living, inorganic component, so it is an abiotic factor.

A dead log was once part of a living tree (a living organism), so it is a biotic factor as it is a once - living component.

Answer:

Biotic

Rock: