The struggle for existence against other members of an organisms species is gene flow

genetic drift

Natural Selection

Competition

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

How to convert a density of 0.791g/cm3 to lb/ft3

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods