Which best describes the biological species concept Genetic exchange does not occur between reproductively isolated populations. Sexually reproducing species inhabit particular niches. Certain factors?

The biological species concept defines species as groups of individuals that can interbreed and produce fertile offspring, with genetic exchange occurring within these populations. Reproductively isolated populations, on the other hand, do not exchange genes, leading to distinct species over time. This concept emphasizes the importance of reproductive isolation and genetic continuity within species while recognizing that factors such as ecological niches can influence their evolution and diversification.