Selective breeding
hope this helps
Answer:
A) They form covelant bonds
Explanation:
covelant bonding occurs when pairs of electrons are shared by atoms.
I think Earth’s atmosphere plus atmosphere. So, 23+48=71. So, the answer is A
Humans get amino acids from protiens in the food we eat. As we digest the food, the enzymes in our stomach and small intestines break down proteins into small amino acids. So technically, we do not make amino acids, we get amino acids from eating food high in protiens.
