Question

the ____________ consists of blood, blood vessels, and the h (options: integumentary system, urinary system, respiratory system, circulatory s)

Explanation:

The circulatory system (also known as the cardiovascular system) is composed of blood, blood vessels (arteries, veins, capillaries), and the heart. The integumentary system is about the skin, hair, etc. The urinary system deals with kidneys, bladder, etc. The respiratory system involves lungs, airways, etc. So the correct system matching the components (blood, blood vessels, heart) is the circulatory system.

Answer:

circulatory system (the option with "circulatory" in the teal - colored box, likely labeled as something like "circulatory system" fully when visible)