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Chemicals secreted by glands and transported through the circulatory system to organs and tissues are also known as A. a hormone. B. an enzyme. C. DNA. D. a food molecule.

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5 votes
the answer is A. hormone.
User AtulParmar
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These chemicals are known as hormones. These are substances that are produced by the glands. These substances are the messengers inside the body and are the controllers in maintaining balance inside. Hope this answers the question
User Stevie Howard
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