Answer:
The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.
Explanation:
Mitochondria- it produces the energy for the cell. the muscle needs more energy because they are always functioning
It is the transfer of genes from one gene pool to another.
