Help me solve this I don't know-how to do it

Cell Reproduction cancept map

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

Which feature of a human community is similar to a niche in a biological community

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.