Population decrease and extinction
Answer:
ATP contains a large amount of energy because it has high-energy phosphate bonds.
Explanation:
ATP is an unstable molecule which hydrolyzes when it react with water to form ADP and inorganic phosphate. The large amount of energy of ATP comes from the two high-energy phosphate bonds.
Hope this helps :D
Although I see no photosynthesis model, I can assume that the correct answer is that the inputs for photosynthesis are the outputs for respiration, and the outputs for photosynthesis are the inputs for cellular respiration. Therefore, they both depend on each other to keep themselves going.