As you hike up a mountain, you realize that the plants and a…

As you hike up a mountain, you realize that the plants and animals present at the base are not the same as those at the top. This observation is the basis of                        A)   natural selection.             B)   biogeography.            C)   comparative anatomy.            D)   geology.            E)   paleontology

The filled-in squares of a Punnett square represent   A)   t…

The filled-in squares of a Punnett square represent   A)   the gametes from both parents.   B)   all possible combinations of gametes based on a cross between the two parents.C)   an exact ratio that must always occur when the same parents have four offspring.D)   examples of some of the offspring that can arise from a one-trait cross.E)   the gametes from one parent.