Biology
In addition to mucus, what helps your nose filter out germs and dirt?
More Questions from Biology
Which of the amino acids is actually an imino acid?
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What substance is produced by flowers and sometimes causes hay fever?
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Which theory states that living things come only from other living things?
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What are the lungs that tarantulas breathe with called?
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Some insects in the north produce what chemical to serve as a natural antifreeze in the winter?
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What is made by white blood cells to help fight off infection?
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What is the stage in humans where the body matures physically?
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