The Fundamental Repeating Unit of the Myofibril, Called a ___________

Multiple Choice

The fundamental repeating unit of the myofibril, called a ___________, gives skeletal muscle its striated appearance and is bordered by ________.

A) crossbridge : Z lines
B) sarcomere : I bands
C) sarcomere : Z lines
D) crossbridge : A bands
E) sarcomere : M lines