Question

which examples below are considered ecosystems? select all that apply a lake b niche c dead log d desert

Explanation:

An ecosystem is a community of living organisms interacting with their physical environment. A lake, a dead log (with its associated organisms and environment), and a desert all fit this definition. A niche is the role an organism plays in its environment, not an ecosystem itself.

Answer:

A. lake, C. dead log, D. desert