Which of the following correctly identifies the number of protons, neutrons and electrons in the following atom? 73^ As

Which contributions did galileo make to the model of the solar system? check all that apply.

What causes temperature extremes in the desert

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time