Match the labels to this schematic of the digestive system.

Mucous membranes.. a. cover or line external surface of body. b. line internal body surfaces that are in contact with the environment. c. produce antibodies to combat infection. d. secrete sweat, which has antibacterial enzymes.

Which foods are categorized as foods you should "eat less of" on the food label?

Which behavior of an expectant mother is unhealthy