Is an organism in its earliest stage of development. In humans, this is the stuff and defined as the developing organism from the fourth day after fertilization to end of the week. After that unborn baby is usually referred to as the fetus.
Answer:
A chemical weathering. if correct then plz mark brainliest!!!!!
Explanation:
There are 20 amino acids and 64 codon combinations that make up an amino acid, therefore some amino acid combinations result in the same amino acid.