Answer: Specialized cells differ from one another because they "only express one gene." In the body, the DNA is the exact same in each cell. However, the gene expression in these cells are completely different. Each specialized cell has a certain function they will perform.
<span>Transferring heat by moving cooler air over the body</span>
To recycle the water it goes around like water falls by rain, the sun get it back up. but its like recycle but with water
Deoxygenated blood could get to body cells which would be useless since oxygen is needed for functioning