Q: What is the main function of the cardiovascular system?


Read this paragraph and choose the correct option from the provided answers:

The main function of the cardiovascular system is transporting substances around the body. Figure above shows some of the substances that are transported in the blood. They include hormones, oxygen, nutrients from digested food, and cellular wastes. Transport of all these materials is necessary to maintain homeostasis of the body and life itself.

 Choices:

- respiration of air

- excretion of food waste

- coordinate bones and muscles

- transporting substances around the body


A:
transporting substances around the body