Quoc: Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.

Answer this question based on the passage: what does blood do in the human body?
HW Chung: OK, some thoughts:
This is the relevant information: Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells. The answer is delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.