Question

The materials carried by the circulatory system include which of the following? (1) blood, (2) hormones, (3) oxygen, (4) cellular wastes.

a. 1 only
b. 1 and 2
c. 1, 2, and 3
d. 1, 2, 3, and 4

Answer 1

The circulatory system carries blood, hormones, oxygen and cellular wastes. The blood is the fluid that flows throughout the circulatory system and it transports oxygen, hormones, and nutrients to the body. Wastes on the other hand are transported away from the body.

The answer is then D. 1,2,3 and 4.