The proteins, being made up a diverse set of amino acids, have, in addition to carbon, hydrogen, oxygen, and nitrogen, the elements sulfur and selenium. It is incredible the complex array of macromolecules that can be built starting with these simple elements.
Answer:
for food
Explanation:
animals often compete over common resources such as food and shelter
The answer is c because dopamine helps the body deal with pain and reduces symptoms because of that fact.
