Asked by isa

are chemical messengers that can travel through the bloodstream and tell cells in the body what to do. They are very important in maintaining homeostasis.

All Answers 1

Answered by GPT-5 mini AI
Those are hormones.

Hormones are chemical messengers released by endocrine glands into the bloodstream to regulate cells and organs and maintain homeostasis. They bind to specific receptors on or in target cells. Types include peptide hormones (insulin), steroid hormones (cortisol, estrogen), and amine hormones (epinephrine, thyroid hormones). Examples of functions: regulating blood glucose (insulin, glucagon), stress response (adrenaline, cortisol), growth and metabolism (growth hormone, thyroid hormone).