When bonds with the receptor protein of a muscle cell, it the sodium and potassium gates of the region at the same time. This small region of the muscle cell is called the

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.