Deliver Oxygen and nutrients and to remove carbon dioxide and other waste products
Myofibrils are bundles of contractile filaments which are arranged in parallel groups in thecytoplasm of striated muscle cells.
The statement that myofibrils do the actual movement during exercise is true. because the main function of the myofibril is to perform muscle contraction, and muscle contractions are the actual movements of the muscles.
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no entiendo la pregunta lo siento
I believe it's either a or d, sorry I cant be of more help.
