1. These are organic substances released by the glands of endocrine system., Nutrients, Hormones, It refers to the maintenance of a stable internal environment in the body., Metabolism, Homeostasis, The process by which the body turns into food into energy to keep us alive and active., Photosynthesis, Metabolism, 4.This is like a tiny factory inside your body that makes and releases important chemicals called hormones or fluids.,  Bone, Gland.

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