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.

Hey friend,

Statement: which is most likely to happen to a population that becomes anatomically isolated from the rest of its species

B- the population will become a separate species over time  

Explanation: They wont be able to learn and expand their knowledge. Their species have chance of extinction. Unaware of social different and a degree of cultural, religious and ethnic intolerance. Lack of vision in terms of other species and how socialize with them or interact with them. They would have no chance to improve or intermingle their genetic material and produce various genomes.

I hope that you like the answer.

Thanks for your question.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

for a different answer set the answer would be because the oxygen in the water had depleted (apex)