Question

what is defined as \an individual unit that can interbreed within itself\?
species
ecosystem
community

Explanation:

To solve this, we analyze each option:

• Species: A species is defined as a group of organisms that can interbreed to produce fertile offspring (or an individual unit that can interbreed within itself).
• Ecosystem: An ecosystem is a community of living organisms and their non - living environment interacting as a system, not related to interbreeding.
• Community: A community is a group of different species living in the same area, not defined by interbreeding within a single unit.

So the correct option is the one with "species".

Answer:

A. species