How is an individual blood cell inside the body of a parakeet different from the parakeet as a whole? the parakeet has a waste removal system but the individual cell stores all of its waste inside the cell. the parakeet needs an outside source of food but the individual cell makes its own food. the parakeet can survive without other parakeets nearby but the individual cell needs other cells to survive. the parakeet needs an outside source of oxygen, but the individual cell has an internal source of oxygen.