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.
Increased in pitch (frequency). It's the doppler effect.
A multicellualr organism, also absorbs organic material.
Answer:
The frog is a secondary consumer
Explanation:
its not a primary producer because it doesnt start the chain
its not a primary consumer because the frog can still be eaten
and it cannot be a decomposer because it is not a fungi or other kind of carcass eating creature