Question

which best describes biogeographic isolation? it always leads to the formation of new species. it cannot lead to evolution. it is a mechanism for evolution. it occurs only through geographic forces.

Explanation:

Biogeographic isolation is a mechanism that can lead to evolution by separating populations, which may then diverge genetically over time. It doesn't always lead to new species formation immediately, and it can be caused by both geographic and biological factors.

Answer:

It is a mechanism for evolution.