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Answer:

Across
1breakdown of food into smaller pieces
5taking food into the mouth, chewing, and swallowing
7movement occurs own its own
Down
1Waste is excreted by what system?
2removal of undigested and unabsorbed food from the body
3What system is responsible for transporting materials from one part of the body to another?
4What is the main organ in the respiratory system?
6What is the largest organ in the human body?
 
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