Which term describes a group of individuals that can interbreed?

The term "species" is used to describe a group of individuals that can interbreed and produce fertile offspring. This definition is fundamental in biology, as it categorizes organisms based on their ability to reproduce among themselves, thus maintaining their genetic lineage.

In a biological context, individuals within a species share common characteristics and are often found in similar environments. This interbreeding leads to the exchange of genetic material, which is vital for the adaptation and evolution of the species over time.

While options like "population," "community," and "ecosystem" relate to biological groups, they have different meanings. A "population" refers to a specific group of individuals of the same species that live in a defined area. A "community" encompasses all the populations of different species that interact with one another in a particular environment. An "ecosystem" includes not only communities of organisms but also the physical components of their environment, such as air, water, and soil. Thus, the concept of interbreeding specifically aligns with the definition of a species.