Answer:Many bacteria and fungi are important in the environment because they return energy to the environment
Explanation:
A.
conserve energy
The smaller muscle mass of the sloth, means that it needs less energy to work, allowing it to be able to survive on a less diet.
Most of their muscles are concentrated in their upper body, allowing them to be efficient climbers but very slow on the ground.
The answer is c when the substances are evenly spread out.