I think it would be A. Because plants have bacteria on their roots that take the free nitrogen in the air from the soil and turn it into usable nitrogen. Animals could get usable nitrogen from eating plants since they have bacteria that make it. Then if an animal eats an animal that ate the plant, then it could get that nitrogen. But i am not completely sure though. I just learned this recently. I hope this helped :)
Answer:
Its A
Net 2 NADH, 2 ATP, 4 CO2, 2 FADH2
This is probably water or some other type of nutrients
Answer:
Cyanobacteria otherwise known as "blue-green algae"
Explanation:
