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1
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a substance prepared to introduce the body to immunity
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4
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an organism that absorbs and uses nutrients of living or dead organisms
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5
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these are filled with white blood cells that scan the lymph for pathogens
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7
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many of these your body makes destroys pathogens
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8
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tiny, single-celled organisms, some of which can cause disease
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9
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any agent that causes disease
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1
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a tiny disease-causing particle that consists of genetic material and a protein coat
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2
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a reaction to injury or infection that is characterized by pain, redness and swelling
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3
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your body's first line of defense
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6
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a change that a person notices in his or her body or mind that is caused by a disease or disorder
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