Founded in 1893 as the American Society of Superintendents of Training Schools for Nurses, the National League for Nursing was the first nursing organization in the United States. Headquartered in Washington DC, the NLN is led by a board of governors elected at large by the membership for three-year terms.
Muscles is the correct answer. Please mark brainliest if it helps you.
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Answer:
Myactin is not a protein in fibrils