MCQOPTIONS
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| 1. |
The bones are moved |
| A. | by simultaneous contraction and relaxation of two sets of muscles |
| B. | by alternate contraction and relaxation of two sets of muscles |
| C. | by alternate contraction and relaxation of one set of muscles |
| D. | None of these |
| Answer» C. by alternate contraction and relaxation of one set of muscles | |