The oxygen consumed during cellular respiration is involved directly in which process or event?

Which are forms of nitrogen that are usable by humans

~~16. while watching a special on animals, brianna discovers that hares tend to lose heat through their ears. based on this and what is known about surface-to-volume ratios, propose an explanation as to why hares that live in hot climates (such as the desert) have large, extended ears

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?