[Please HELP] Two populations of squirrel became separated by a large canyon. When scientists introduced members of one population into the other, they would no longer interbreed. Because of this, the squirrels were classified as two different species. What have these two populations of squirrels undergone? A. Succession
B. Speciation
C. Biomagnification
D. Genetic engineering

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

The cluster of developing cells from conception until birth is called an