What does the female reproductive system interact with? What does the male reproductive system interact with?

What does the nervous system interact with?

Which process can increase the rate of greenhouse gas emissions into the atmosphere in response to a decrease in albedo

Depending on the organism the number of in a cell may change

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