Blood carries cellular waste away from cells to the kidneys.
Cellular waste travels in the blood until it gets to the kidneys where it is removed and sent out of the body as urine. bladder
Kidneys are the specialized structures that remove cellular waste from your blood. They are part of a system of organs that take the waste out of your body.
Lungs are specialized structures. Their function is to bring oxygen into your blood. Lungs are part of the respiratory system that brings air in and out of your body.
Your heart is a specialized structure. Its function is to pump blood.
Blood vessels are specialized structures that work together with the heart in the circulatory system. The function of that system is to carry important materials like oxygen, water, energy and waste for the bodys cells.
The organs in your digestive system are specialized structures that work together. Their function is to remove nutrients from food and put them into your blood.
Well done!! You just watched a loooong presentation. Only someone who is really interested in science would watch the whole thing. Ill bet you know a lot more about life science now than you did before.