Question

what is a natural unit consisting of all the biotic and abiotic factors which interact with each other in a given area?

a niche

b environment

c ecosystem

d community

Explanation:

• Option a: A niche refers to the role and position of a species in its environment, not the unit of interacting biotic and abiotic factors.
• Option b: Environment is a broader term for the surroundings, not a specific unit with interacting biotic and abiotic components.
• Option c: An ecosystem is defined as a natural unit where all biotic (living) and abiotic (non - living) factors in a given area interact with each other.
• Option d: A community consists only of the biotic (living) components (different species) in an area, not including abiotic factors.

Answer:

c. ecosystem