Draw arrows showing the direction of airflow into the lungs. how would an object blocking a bronchus affect this air flow? super easy and

Scientists who study the anatomy of the systems in the human body focus their studies on

In a study of a weight loss program, 40 subjects lost a mean of 3.0 lb after 12 months. does the weight loss program have practical significance? a. yes, because the weight loss program worked and the subjects lost a mean of 3.0 lb. b. no, because the mean weight loss of 3.0 lb after one year does not seem to justify the program. c. no, because the sample of 40 subjects was too small to determine if the program was useful. d. yes, because the mean weight loss of 3.0 lb after one year does seems to justify the program.

The goal of the flu vaccine is to prevent you from becoming infected with influenza. select the best answer from the choices provided. t f