Occurs when a less specialized cell is transformed into a more specialized cell

What happens whenever a net force acts on an object

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?

Some substances but not other can cross the (blank) membrane of a cell