After about 1999, the willow tree ring area started to decrease again. What might account for this decrease?

Cells are adapted to preform specific functions. which of the following terms refers to this capability?

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .

What do transitional fossils best support?