Question

what is an ecosystem?
a group of organisms that share very specific traits and can mate to produce fertile offspring
a group of organisms from the same species that live in an area at the same time
a system where a community interacts closely with its environment
a group of populations of different species that live in an area and interact with each other

Explanation:

• The first option describes a species.
• The second option describes a population.
• The fourth option describes a community.
• An ecosystem is defined as a system where a community interacts closely with its environment.

Answer:

A system where a community interacts closely with its environment.