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Kitty [74]
3 years ago
8

During the contraction of a vertebrate skeletal muscle fiber, calcium ions _____.

Biology
1 answer:
vodomira [7]3 years ago
6 0
During the contraction of a vertebrate skeletal muscle fiber, calcium ions "<span>bind with troponin, changing its shape so that the myosin-binding sites on actin are exposed."

Hope this helps!</span>
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