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Blood cells are made in which system? A. muscular system B. skeletal system C. circulatory system D. digestive system
C. circulatory system
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User: Blood cells are made in which system? A. muscular system B. skeletal system C. circulatory system D. digestive system

Weegy: C. circulatory system
Expert answered|sjvg1976|Points 81|

User: Divers instinctively prevent serious damage to arms and legs by pulling them in close to the body during a dive. Which two organ systems work together to accomplish this? A. circulatory and nervous systems B. nervous and muscular systems C. muscular and digestive systems D. digestive and circulatory systems

Weegy: B. nervous and muscular systems
Expert answered|sjvg1976|Points 81|

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Asked 6/29/2011 5:22:04 AM
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does the skin membrane of a frog and the kidney of a human preform the same function?
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