Which statement is true about parts of the respiratory system? a. the trachea is separate from the windpipe. b. the nose is designed primarily for expiration. c. the nose warms, moistens, and filters air before it reaches the lungs. d. the pharynx is separate from the throat.

What is the main goal of recommended dietary allowances (rdas)? to inspect school cafeterias across the united states to regulate foods sold at supermarkets and farmers' markets to investigate claims of tainted food being served in restaurants to indicate daily nutrient requirements