Which is not an essential nutrient?
vitamins, carbs, water, or veggies?

The world’s richest 20 percent of the population consume about what percentage of all goods and services in a given year?

Name three bad things that can happen to a teenager who has no refusal skills and no self-control:

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.