Which statements about collagen molecules are correct? 1 Both types of secondary structure occur within the molecules
2 Large numbers of hydrogen bonds stabilize the molecule
3 repeated amino acid sequences determine the tertiary structure

A.1,2 and 3 B.1 and 2 only C.1 and 3 only D. 2 and 3 only

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

Which statement best describes the role of religion and culture in ancient medicine?

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 .