Question

6. How does gaseous exchange take place in
(i) earthworms
(ii) frogs
(iii) insects
(iv) fish?​

Answer 1

Answer:

I) skin

2) skin and lungs

3)tracheal tubes

4)gills

Answer 2

Answer:

In earthworm, the exchange of gases occurs through the moist skin. In fishes it takes place through gills and in insects through the tracheae. while frog's repiration takes place through the skin.