Nthe body cells of most organisms, oxygen is used to release for use by the cells. a) urea b) sugar c) energy d) carbon dioxide

C

Explanation:

Oxygen is used the ultimate proton acceptor in the mitochondria of cells. During the Krebs cycle, the H+ ions produces from oxidation of FADH2 and NADH are pumped to the inter-membrane space. The proton motive force generated is used to make ATPs and ultimately reduce oxygen to water.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.

i believe the answer is three water molecules