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What is the function of human heart? how blood circulate through it and other part of the body?
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The body is protected against harmful flu viruses by
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Which best describes meiosis? a. it produces cells that are identical to the original cell b. it is responsible for the replacement of damaged skin cells c. it is responsible for growth of the organism d. it produces male and female sex cells
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How can an organ, such as the lungs, work for multiple body systems?
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What is the function of human heart? how blood circulate through it and other part of the body?...
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