Frog lungs are poorly developed. how does this relate to their skin being thin and moist?

Describe five factors that influence the value of fuel

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

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 .