Which of the following is the best definition of biogeographic isolation? the separation of members of a species through geographical or biological the separation of members of different species through geographical forces the separation of populations of different species through time the separation of members of a species through anatomical forces

The best definition of biogeographic isolation is the separation of members of a species through geographical or biological forces. Biogeographic isolation occurs when populations of the same species are separated by physical barriers such as mountains, rivers, or oceans, which prevent them from interbreeding and exchanging genetic material. This can lead to the evolution of new species over time as the isolated populations adapt to their specific environments and accumulate genetic differences.