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Select all that apply. which of the following are functions of the skeletal system? 1. to provide the body with a strong and mobile framework 2. to allow the body to move 3. to protect internal organs from sunlight, bacteria, and injury 4. to supply the body with blood cells and minerals

The first step in treating water from a river or lake is usually

What is the most likely reason the professional group binds its members to follow these rules?