Factors playing a role in fatigue can be classified into two categories. define those two categories and provide an example of each.

What are genotypes? what are phenotypes?

Which is an example of a population?

What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.