Genetic drift is a change in the gene pool due to chance. Genetic drift increases as the population decreases. What accounts for this relationship?

Which list shows the levels of organization of an organism in hierarchical order from left to right, from the smallest to the most complex?

The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.

How does natural selection change thephenotypes within a population over time?