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7th Grade Biology

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Question
Answer
Job of Digestive System   digest food; absorb food's nutrients  
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Job of Excretory System   excrete wastes; filter blood  
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Job of Respitory System   take in oxygen; dispose of carbon dioxide  
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Job of Cardiovascular System   carry needed substances to cells; carry waste products from cells; contains cells that fight disease  
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Job of Skeletal System   protection; shape and form; movement; blood cell production; stores minerals  
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Job of Muscular System   move bones; provide support and production for organs  
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Job of Integument System   maintain healthy internal environment  
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Capallaries   where bloodstream and body cells exchange materials  
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Arteries   where blood travels TO heart  
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Veins   where blood travels AWAY from heart  
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Platelets   in blood; form blood clots to stop bleeding  
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