What happens when the spinal cord is injured? a. the parts of the body using the damaged areas lose sensation. b. the affected neurons in the cns regenerate gradually. c. the path of impulses in the nervous system may be disrupted. d. both (a) and (c).

Which type of bacterial reproduction is depicted in the diagram?

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

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.