Composed of a number of small organs distributed throughout the body, the endocrine system coordinates the metabolic activity of body cells by interacting with the nervous system. Endocrine glands produce hormones (chemical messengers) released into the blood and transported to target sites around the body.
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Explanation:
Composed of a number of small organs distributed throughout the body, the endocrine system coordinates the metabolic activity of body cells by interacting with the nervous system. Endocrine glands produce hormones (chemical messengers) released into the blood and transported to target sites around the body.