Abdul has not eaten in a while, so his endocrine system releases hormones that slow the process of digestion, which in turn slows the production of materials for new cells. What process in Abdul is being regulated by hormones?

Hormones regulate metabolism, the body’s chemical processes that break down food and use nutrients to produce energy and materials for cells. When Abdul has not eaten, hormonal signals can slow digestion and the production of materials for new cells. That makes metabolism the correct choice; stress response, mood regulation, and reproduction do not describe these digestive and cell-building processes.

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