Which is a function of mucus in the lungs? it prevents food from entering the lungs. it carries carbon dioxide to the body cells. it traps particles such as dust and pollen. it forms a thin tissue that lines the alveoli.

Question 4 using myplate's daily food plant for 2000 kilocalories as a reference, the servings from the protein foods group in this menu are a. adequate overall, and consistent with the dietary guidelines 2010 recommendations. b. short 2 ounce equivalents. c. inadequate in terms of the recommendations for a 2000 kcal diet. d. adequate overall, but inconsistent with the dietary guidelines 2010 recommendations.

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?