Answer:
O2 participates in cellular respiration
Explanation:
The only place that O2 participates in cellular respiration is at the end of the electron transport chain, as the final electron acceptor. Oxygen's high affinity for electrons ensures its success in this role.
Answer:
relief rainfall occurs when warm moist air from the atlantic ocean rises up over mountains when the warm air rises it cools and condenses to form clouds which bring rain.
The digestive system breaks down food, the respiratory system takes in oxygen, and the cardiovascular system delivers the oxygen and food to the cells.