2. describe the flow of nitrogen in an environment using the following vocab words:
ammonification, bacteria, nitrification, nitrogen fixation, denitrification, assimilation,
decomposers

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

Contrast how pollination is different among gymnosperms and angiosperms.

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?