Question 1 (true/false worth 4 points) (04.01 lc) the organ is the simplest level of organization of organisms. true or false

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

Ascientific idea becomes valid when it is what?

Which of the following explains why a tree is often used as a model to represent the principle of common descent