By What Mechanism Do Most Hormones Travel Through the Organism

Question

By what mechanism do most hormones travel through the organism that produces them?
A)the circulatory system
B)diffusion
C)convection
D)the nervous system

Accepted Answer

Most hormones are transported through the circulatory system, either bound to carrier proteins or freely circulating in the blood. This allows them to reach target cells and organs throughout the body.