Chemical messengers that travel through the bloodstream and affect other cells are called:

Question

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Hormones are chemical messengers that are secreted by endocrine glands and travel through the bloodstream to specific target cells, where they produce a response. Gonads are reproductive organs that secrete hormones, but they do not travel through the bloodstream to affect other cells. Sertoli cells are specialized cells found in the male testes that support the development of sperm, but they do not secrete hormones that travel through the bloodstream.

Chemical Messengers That Travel Through the Bloodstream and Affect Other