Oxyhemoglobin releases its oxygen to the body tissues when there is a[n]: A)constant amount of nitrogen in the plasma.

B) increase in oxygen in the plasma.

C) decrease in carbon dioxide in the plasma.

D) increase in hydrogen ions.

Kelly ran electricity though a sample of water using electrolysis. the water changed into two gases, x and y. it was not possible to break down the gases x and y into simpler particles.

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 .

20 how are energy cycles and growth cycles related?