What do the alveoli do? THINK! How do muscles and digestive juices work together to help your body digest food? How might breathing smoky, dusty air affect your respiratory system? trachea (tray kee uh), a tube that goes from your nose andanbsp;...
|Title||:||Being Healthy 90|
|Author||:||Larry K. Olsen, Richard W. St. Pierre, Harcourt Brace Jovanovich, Jan M. Ozias|
|Publisher||:||Houghton Mifflin Harcourt P - 1990-01-01|