It consists of skin, hair, nails, and glands. The skin protects the body from the environment on the outside. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature. It also helps store fat and water.
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All cells in the body have the same DNA and the same genes. In organs & tissues the expression changes.
Answer:
<u>function optimally.</u>
Explanation:
During emerging adulthood, all body systems <u>function optimally.</u>
