Answer:
Oxygen is used to break down sugar and sugars release energy
Answer: i feel it should be c
Explanation:
Diversity is produced by mutation, it is what causes life to have advantages or disadvantages, and thus allow survival of the fittest to choose which mutation is the best suited for it's environment.
decomposers break down dead things and waste, so I would say that dead animals would not go back into the ground as fast and the nutrients would not go back into the cycle
