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3 Cards in this Set
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- Back
- 3rd side (hint)
Mucus |
a thick liquid produced in parts of your body such as your nose |
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absorptive |
process in which something takes in liquid, gas, or hea |
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unheard of |
something that is unheard of is so unusual that it has not happened or been known before: |
Travel for pleasure was almost unheard of until the 19th century. |
