How do the circulatory and endocrine systems work together?

a.

Blood circulates hormones around the body

c.

Nerves signal endocrine glands

b.

Hormones keep the heart pumping

d.

The blood brings waste to the kidneys

The correct answer would be: "A"

Explanation: The circulatory system is the transport system for endocrine information. T he endocrine chemicals and hormones must circulate through the body via blood vessels. Many glands in the body secrete hormones into the blood.