Explain what it means to say that natural selection is not random

How are rocks that cooled within magma chambers found on earth’s surface today? they are pushed up by magma under earth’s surface. they are revealed by erosion of earth’s surface over time. they are pushed to earth’s surface because of their larger size. they are revealed at earth’s surface due to their low density.

Which flexible structure that supports the nerve cord and led to the backbone

What two factors does carrying capacity compare? population size and resource use population growth and resource availability resource use and time population size and time