Categorization In Common from http://puzzlemaker.discoveryeducation.com/

http://puzzlemaker.discoveryeducation.com/   Categorization In Common
	What is the one thing shared by all three items in the same group? A a cow a shoe a baby B a doctor's office a post office music C a zipper a shark a comb D restaurant goer a bird the Senate E a potato a hurricane a target F a river a person a cave
	A. a tongue B. a scale (or a key) C. teeth D. a bill E. an eye F. a mouth