What is the importance of geographic isolation in speciation?
a. it allows different mutations to arise.
b. it prevents reproduction between populations.
c. it reduces competition between the populations.
d. it protects one of the populations from predation.

Science describe how heat moves in a convection current. how is this process responsible for moving earth’s tectonic plates? discuss two ways that humans are impacting our earth. be sure to pick one way we are impacting our land, and one way we are impacting our water. then, create an action plan that includes a way that you and your family can protect the earth from these impacts