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: Skeletal muscles (striated) are responsible for voluntary movements, while smooth muscles control internal organs and are involuntary. : Maintaining correct posture is essential during childhood
: Maintaining correct posture is essential during childhood and adolescence while bones are still growing to prevent conditions like scoliosis. gdz po biologii 8 klass r.t opora i dvizhenie onlain sonin
: Muscle fatigue is caused by the accumulation of metabolic waste (like lactic acid) and the depletion of energy stores during prolonged physical activity. Health and Posture