Answer:
The mechanism by which organisms use oxygen to break down food molecules in order to obtain chemical energy for cell functions is known as cellular respiration. In the absence of oxygen, cells can generate energy by fermenting food, a mechanism known as anaerobic respiration.
Explanation:
- Eijiro <3
<h3>
Answer:Enzymes are protein macromolecules. </h3>
Explanation:Proteins are large biopolymer molecules that are made up of repeating monomer units called amino acids.
The limbic system and that part controls like the memory and emotions
