Which of the following is a drawback to polyculture?

It allows multiple varieties of plants to exchange multiple resources from and to the soil.

It offers predictable large yields of a single crop.

It allows standardized growing techniques.

It is challenging to development and maintain.

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

What advantages does a pedigree have over a written passage?

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 .