Most of the mass in a large tree comes from?

Provide one reason why mitosis occurs.

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?

Which anatomical plane is the only one that could not show both the sternal region and vertebral region