Organs for breathing


ORGANS FOR BREATHING


           Different types of animals have different organs for breathing.

 

1.         Lungs:

Figure 10: Human lungs

 

           An adult frog breathes through its lungs on land and it breathes through its moist skin in water.

           Birds, reptiles, and mammals also breathe through lungs.

 

2.         Gills:

Figure 11: Fish have gills for breathing

           Fishes, tadpoles (baby frog), oysters, prawns and crabs breathe through gills.

 

3.         Spiracles:

Figure 12: Insects breathe through spiracles

           Insects have tiny air holes on their bodies called spiracles to breathe.

 

4.         Body surface:

Figure 13: Amoeba

           Some microscopic animals like amoeba exchange gases through their body surface.