2. Jellyfish are one of the oldest species on Earth. In what time period did they first appear? A. Precambrian Time B. Paleozoic Era C. Mesozoic Era D. Cenozoic Era​

If a set of instructions that determines all of the charactersitics of an organism is comparedto a book, and a chromosme is compared to chaper in the book, then what might be compared to a paragraph in the book?

Explain light independent reactions

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 .