Which of the following relationships is an example of commensalism? O A. Insects get food from flowers and help the flowers reproduce. O B. Bacteria live inside a human's stomach, making the person ill. O C. Mosquitoes eat the blood of cows, passing along disease. O D. A fish lives in coral, getting protection from the coral.

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.