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Book, 2017
Current format, Book, 2017, Franklin Watts library edition, Available .
Book, 2017
Current format, Book, 2017, Franklin Watts library edition, Available . Offered in 0 more formats
"Besides being gross, what is the point of boogers and mucus? Read all about how these slimy substances help us digest our food and prevent us from becoming sick. You'll also find out just what this sticky stuff is made of, why we produce more of it when we've got a cold, and what animals like slugs and snail do with their mucus!"--Page 4 of cover.
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