The size changes in horses through time is an example of Cope's Rule
The propensity for organisms in evolutionary lineages to become larger over time is known as Cope's Rule. Although the idea is covered in great length in numerous textbooks, it is rarely illustrated. There are numerous hypotheses on the advantages of having a large body size, but none have been objectively proven.
According to Cope's rule, evolution typically results in a lineage of populations growing larger over the course of geological time. In the fossil record, there are numerous examples of evolutionary processes that lead to an increase in body size. For instance, the size of the Eocene horses' forebears was comparable to that of a dog.
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To keep the body's internal environment in balance c) to make room for nutrients coming in d) to reduce unpleasant
Answer:
The birds will no longer molt brown feathers for white ones.
Explanation:
Over time the birds with white feathers will slowly die off (mostly dude to predators), and over time the birds will likely no longer have white feathers, and they will no longer molt from brown to white and white to brown. The feathers will likely stay brown year round.