There are twenty amino acids in living organisms. Ten of these are referred to as essential amino acids. Why are they called essential amino acids?
These amino acids are the only ones that are important for the body to function properly.
These amino acids cannot be made by the human body and must be consumed in one's diet.
These amino acids are the only ones that are made by the human body.
O
DONEV

It is “These amino acids cannot be made by the human body and must be consumed by one’s diet.”

Explanation:

A healthy body can produce non-essential amino acids by itself, while we need to acquire the essential amino acids via our diet to be healthy.

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.