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6 Cards in this Set
- Front
- Back
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critical
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being important to the outcome of a situation
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enables
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gives ability, power, or means to: makes able
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mucus
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a slimy substance produced in the nose and throat to moisten and protect them
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scarce
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hard to get; rare
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specialize
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to develop in a special way
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sterile
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free from germs
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