Explanation:
Wegener used evidence of climate change to support his hypothesis. As a continent moves toward the equator, its climate becomes warmer. As a continent moves toward the poles, its climate becomes colder. But the continent carries with it the fossils and rocks that formed at its previous locations.
B. Gene. Piebalding is caused by mutant copies of genes.
Loss of habitat from any number of causes is the main reason for species endangerment currently.