plants,humans and fishes respiratory system and air

1. diaphragm moves up as we breath out and moves down as we breath in

2. fish respiratory system

2.1. they breathe thought gills

3. frog and earth worm respiratory system

4. human and mammals respiratory system

4.1. lungs of human

5. plant respiratory system

5.1. stomata

5.1.1. they breathe with the stomata

6. frog