Question

What is respiratory system? Write its structure and function?

Answer 1

• The respiratory system is a system of specific organs used for the gaseous exchange in plants and animals.
• In Sponges, Cnidarians, Flatwormsthey respire from the general body surface.
  
• In earthworm and frog, they respire from moist skin.
• In insects, tracheal tubes are used for the exchange of gases.
• In aquatic arthropods, Molluscs, Fishes gills are there for respiration.
• In Reptiles, Birds and Mammals lungs in found.