Water is a nutrient that helps transport materials through our body and helps regulate body temperature. Minerals, like calcium and iron, are important for growth, development and maintenance of the tissues and cells in our bodies.
proteins embedded in the cellular membrane act as ushers. They help carry nutrients from bloodstream into cell. Glucose,amino acids,fats,and vitimans use carrier proteins to get inside cells.
I believe it is A because i feel it is the only exercise were you are using your arms to lift you entire body off the ground, but who knows i could be wrong <span />
