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.
Discretionary calories<span> are excess </span>calories<span> to enjoy once your required nutrient needs are met.</span>
Once you try a drug amd you like it you get hooked so alot of people are hooked on drugs
Car wrecks or drug overdose.
