Sends special messages to all the different parts of the body. This tells the body parts what to do., Takes in oxygen that the body needs from the air., Pumps blood throughout the body., Removes harmful substances from the blood., Filters waste and extra water from the blood to make urine., It absorbs water and salts from the food waste left over after digestion. This helps form solid waste., Complete the digestion of food, absorb vital nutrients, vitamins, water, and salts into the bloodstream., Protects the body and allows us to feel heat and cold. , Breaks down food into smaller parts. , Carries food down from the mouth to the stomach. .

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