a normally harmless substance that causes the immune system to produce an immune response
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Card 8
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a substance produced by living organisms that can destroy or inhibit the growth of microorganisms
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Card 9
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a protein produced by lymphocytes in response to the presence of the appropriate antigen
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Card 10
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the range and variety of genes, species and habitats within particular region
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Card 11
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a disease resulting from mutations that lead to uncontrolable cell division and the eventual formation of a group of abnormal cells may break away and form elsewhere in the body
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Card 12
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a chemical a form of radiation or other agent that causes cancer
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Card 13
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one of the two copies of a chromosome that are joined together by a single centromere prior to cell division
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Card 14
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attraction between molecules of the same type. it it important for movement of water in plants
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Card 15
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permanent changes due to the unravelling of the three dimension structure of a protein as a result of factor such as changes in temperature or pH
