Respiratory surfaces

At the end of this activity, students should be able to:
– present the factors that affect the diffusion of gases across respiratory surfaces
– present the main types of respiratory organs in animals
– explain the functioning of gills in fish
– present the anatomical features that enable gas exchange on land, using plants and insects as examples
– discuss gas exchange in relation to water evaporation from the body surface
– present the main structural features and the principles of lung ventilation in land vertebrates.