Answer:
they provide the body with energy
Explanation:
Carbohydrates are your body's main source of energy: They help fuel your brain, kidneys, heart muscles, and central nervous system. For instance, fiber is a carbohydrate that aids in digestion, helps you feel full, and keeps blood cholesterol levels in check.
Because the rib muscles and diaphragm contract,increasing the lung volume
I think it is 2048 molecules
A group of cells performing the same function is called tissue. Hope this helps!
