What is the main function of the circulatory system in multicellular organisms?

Question 4 options:

to bring oxygen into the lung

to put carbon dioxide into all blood vessels

to expel waste products from the body

to transport materials throughout the body

1 answer

The main function of the circulatory system in multicellular organisms is to transport materials throughout the body. This includes transporting oxygen, nutrients, hormones, and waste products to and from cells.