Biology

D.They travel through blood vessels to distant target organs

Explanation:

Hormones are chemical messengers produced by endocrine glands and secreted into the bloodstream. From there, they travel through the blood vessels to reach distant target organs or tissues, where they exert their effects. This long-distance signaling allows hormones to regulate various physiological processes, such as growth, metabolism, and reproduction.

A.Gap junctions are used for direct communication between adjacent cells, but not f...