Here, weâre concerned, like Lord Chesterfield, with âthe average cat.â On average, female cats live one to two years longer than male cats. On average, indoor cats live longer than outdoor cats. On average, wild, homeless, and feral cats live dramatically shorter lives than domestic cats.
During contraction, myosin heads bind to actin molecules of the. thin filaments. Flexing of the myosin heads pulls the thin filaments over the thick. filaments - shortening the sarcomere. Muscle contraction requires.
Making the world better, one answer at a time. Muscles contract to move bones. Bones and muscles work like ropes and levers. The muscles can only pull against the bone not push it.