Animals store most of their excess energy reserves as , and this is explained because .

In what for do plants utilize nitrogen? why do they need nitrogen?

What is the identity of the planets?

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures