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2
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A system that provides a flow of nutrients throughout the body.
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4
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A system that brings oxygen into the body and releases carbon dioxide.
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5
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A system that allows movement of an organism.
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6
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A system that breaks down food into energy for the body.
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7
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A system that removes excess, unneeded, or dangerous materials from the body.
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9
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A system that allows the production of offspring.
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10
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A system that supports and protects the body.
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11
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A system that regulates the body’s response to stimuli.
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12
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A system of glands that make hormones to regulate the body.
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13
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A system that protects the body against infection.
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