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JOBS: Delivers oxygen and nutrients to cells Transfers waste/Carbon Dioxide away from Cells Major Organs: Heart Vein Arteries

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Job Takes in food Cut into smaller pieces for the body to use as energy Major Organs Stomach Small and Large Intestine Mouth

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Job Produces hormones to help maintain homeostasis Influence growth, nerve cells sex characteristics, and development Major Organs Pituitary Gland Thyroid Gland

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Job Removes wastes from the Body Major Organs Kidney Urinary bladder

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Job Specialized to fight and destroy invading organisms Major Organs: Helper T Cells

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Job: Prevent and Fight Infections Major Organs: Skin Hair Nails

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Job Provide involuntary movement (heart beats) and voluntary movement (walking) Major Organs: Heart Biceps

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Job Monitor information about external/internal environment Major Organs Brain, Spine, and Nerves

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Job Continuation of the Species Major Organs Penis Vagina

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Job: Inhaled oxygen in required for the breakdown of food Resulting carbon dioxide must be exhaled from the body. Major Organs Nose Trachea Lungs

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Job Provide shape and movement Protect internal organs Major Organs Skull Backbone Femur Ribs