1. ANIMAL RESPIRATION Mrs. Sandy Gómez

2. ANIMAL RESPIRATION 0 Functions of the respiratory system: 0 Take in O2 0 Eliminate CO2 0 Eliminate water vapor

3. ANIMAL RESPIRATION 0 Characteristics all animal respiratory systems share: 0 Moist and large surface area 0 Selectively permeable membrane that promotes diffusion 0 Relative concentrations of O2 and CO2

4. ANIMAL RESPIRATION 0 Respiratory surfaces in aquatic animals: 0 Gills (fish and aquatic invertebrates) 0 Lungs (aquatic mammals and reptiles)

5. ANIMAL RESPIRATION 0 Respiratory surfaces in terrestrial animals: 0 Lungs (mammals, reptiles, amphibians, birds) 0 Book lung (spiders, scorpions) 0 Tracheal tubes (insects) 0 Skin (amphibians)

6. ANIMAL RESPIRATION

7. 0 What are the functions of the respiratory system? 0 What are the characteristics that all animal’s respiratory system share? 0 How do aquatic animals breathe? 0 How do terrestrial animals breathe?