Answers

2014-06-18T18:41:40+08:00
The heart pump model can let us see how the hearts works, its arteries and veins and it contains some things to make that but the human heart is true not a model 
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2014-06-24T12:04:14+08:00
The heart pump model moves water from the jar through the straws and into the pan. The heart pumps blood out into the body through the arteries in a similar way. 
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