<span>A major reason for Herbert Hoover’s landslide victory in the 1928 election was the prosperity of the 1920's. In the early 1920's there was a large economic boom and Herbert Hoover pledged to continue that. </span>
Coal can't be created by the sun's energy.
<u>Mutualism</u>. Both species directly benefit from one another.
The answer is to function as the final electron acceptor in the electron transport chain. It is the only place that O2 partakes in the cellular respiration is at the end of the electron transport chain as the final electron acceptor. Oxygen's high affinity for electrons safeguards its success in this role. Its assistances to driving electron transport, forming a proton gradient, and synthesizing ATP are all indirect effects of its role as the terminal electron acceptor.