Which is most likely to happen to a population that becomes anatomically isolated from the rest of its species?
The entire species will become extinct.
The population will become a separate species over time.
The population will breed with a different species nearby.
The entire species will continue to have viable offspring together.
A population that gets separated from another population eventually differentiates and becomes a new population completely different so the answer is The population will become a separate species over time. What happens is that they adapt to their environment and become a new species that cannot successfully procreate with the original one.
