Similar Material g82 5/8 pp. 21-23 Breathing—The Bird and the Insect Ways Oxygen Supercharging No Help Awake!—1990 If Only Your Lungs Could Talk! Awake!—1971 The Lungs—A Marvel of Design Awake!—1991 Isn’t There Plenty of Air to Breathe? Awake!—1971 Elementary Awake!—1971 Our Atmospheric “Ocean” Awake!—1976 The Miracle of Bird Flight Awake!—1978 The Amazing Hemoglobin Molecule—A Miracle of Design Awake!—2010 A Source of Energy Awake!—1970 Surviving Above the Clouds Awake!—2004