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Vertbrate's body system

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Question
Answer
Fish have how many chambers in their heart?   two  
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Reptilies and amphilbains have how many chambers in their heart?   Three.  
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Birds and mammals have how many chambers in their hearts?   Four.  
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Do arteries take blood to or away from the heart?   They take blood away from the heart.  
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Do Veins take blood to or away from the heart?   Veins return the blood to the heart.  
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Respiratory System   Organs that obtain oxygen from the air and eliminates cardon dioxide from the body.  
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Capillaries.   Organ that exchanges gases bewteen the atmosphere and the blood.  
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Lungs   is a muscle that aids in breathing  
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what are the two main divisions in the nervous system?   The Central nervous system and the Peripheral nervous system.  
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Excretory System   structure or organs that filter waste out of the body by using the kidneys to filter the blood to make urine.  
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Created by: melissapaige103
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