Question

what forms the striations seen in skeletal muscle?
o the arrangement of thin and thick filaments
o the arrangement of epimysium, perimysium, and endomysium
o the arrangement of muscle fibers within the muscle
o the arrangement of fascicles
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Explanation:

The striations in skeletal muscle are due to the highly - organized arrangement of thin (actin) and thick (myosin) filaments within the sarcomeres. The other options refer to different structural components of muscle such as connective tissues (epimysium, perimysium, endomysium), muscle fiber organization, and fascicle arrangement, but they do not cause the striations.

Answer:

The arrangement of thin and thick filaments