Question

Circle the useful material whitch need to reach different parts of the body.
Options: carbon dioxide, oxygen, nutrients, urea.
2. how is the circulatory system similar to a road transport?
3. how does the circulatory system help the human body?

4. which type of circulatory system do humans have closed or open?
5. what happen in this type of circulatory system?
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Answer 1

Answer:

The circulatory system is a vast network of organs and vessels that is responsible for the flow of blood, nutrients, oxygen and other gases, and hormones to and from cells. The blood flow also helps in regulation of body temperature and maintain homeostasis of the body. The formation of urea is the function of excretory system.