PLEASE HELP Predict the outcome of a cross between the two fruit flies shown below. *see attached picture*

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

Which is a function performed by stem cells in the skin a. replacing lost skin cells b. making cells for the intestines c. growing new organs d. differentiating into brain cells plz apex

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?