what happened to a muscle when it contract
A) it become shorter
B) it become stiffer
C) it become longer
D) it become thicker
Answers
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0
Answer:
B) it becomes stiffer...
Answered by
0
Answer:
answer is option A
Explanation:
When a muscle contracts, the actin is pulled along myosin toward the center of the sarcomere until the actin and myosin filaments are completely overlapped. In other words, for a muscle cell to contract, the sarcomere must shorten. However, thick and thin filaments—the components of sarcomeres—do not shorten.
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