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![There are many levers in the human but the most common one is
3rd
2nd
1st](https://content.bartleby.com/qna-images/question/a800d7a8-355f-45ac-805d-9cd3a1983d0b/4f0819fc-6cca-4646-9a69-3684235b67eb/iy70y4_thumbnail.jpeg)
Transcribed Image Text:There are many levers in the human but the most common one is
3rd
2nd
1st
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