Which of the following situations constitutes a way in which a population becomes geographically isolated enough to become a new species?

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

Individuals do not compete directly for resources, but are prey for the same predator

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm