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 and their physical environment interacting as a system.
• A lake (a) has aquatic life, water, and surrounding environment interacting.
• A dead log (c) has decomposers, fungi, insects, and the log itself (providing nutrients) interacting.
• A desert (d) has desert plants, animals, sand, climate, etc., interacting.
• A niche (b) is the role an organism plays in an ecosystem, not an ecosystem itself.

Answer:

a. lake, c. dead log, d. desert