When populations are isolated, even for a short time, mutation at loci with epistatic interactions that are adaptive in their own unique combinations in different environments can (one or more words) in the hybrids when they come back into contact.

A) Depressed fitness of hybrids
B) Hybrid vigor
C) Enforce reproductive isolation
D) Answers labelled A and C are both correct.

How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?