Biology

B.They travel long distances via the bloodstream.

Explanation:

Hormones in animals are chemical messengers produced by endocrine glands, and they typically travel through the bloodstream to target organs or tissues that may be located far from the site of secretion. Hormones regulate a wide variety of physiological processes, including growth, metabolism, and reproduction.

A.Hormones do not act only at the site of secretion; their main characteristic is that they travel long distances to reach their target cells or organs.