... a. Water - most abundant substance in body - required for metabolic processes - required for transport of substances - regulates body temperature b. Food - provides necessary nutrients - supplies energy - supplies raw materials c. Oxygen (gas) - one-fifth of air - used to release energy from nutrients d. Heat - form of energy - partly controls rate of metabolic reactions e. Pressure - ... function 4 basic types: epithelial (epi), connective tissue (CT), muscle (mm), nerve (n) h. Organ: 2 or more tissues joined together with a specific function and shape i. Organ system: Related organs wi...

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