What is the role of capillaries in the circulatory system?

Q10. The main function of the circulatory system is to _______.
The circulatory system is responsible for transporting blood, which carries oxygen, nutrients, hormones, and waste products, throughout the body.
Answer: D. transport blood, nutrients and gases throughout the body

Q11. The cardiovascular system works with the _______ system to provide our body with oxygen.
The cardiovascular system works closely with the respiratory system. The respiratory system takes in oxygen, which the cardiovascular system then transports to the body's cells.
Answer: A. respiratory

Q12. What is the role of capillaries in the circulatory system?
Capillaries are the smallest blood vessels where the exchange of oxygen, nutrients, and waste products occurs between the blood and the body's tissues at the cellular level.
Answer: B. They exchange nutrients and oxygen with tissues at the cellular level