Different monomers contain different kinds of atoms needed to produce different end products
Answer:
B. External respiration
Explanation:
Respiration means transport of oxygen to the cells within tissues, and the transport of carbon dioxide in the opposite direction.
B. Eukaryotic cells
Humans are categorized as eukaryotic organisms.Which means that all human cells can be found with a nucleus. Eukaryotes can found in things like the brain, the heart,the muscles,and such more.