Fill in the blanks:
Exchange of gases in the leaves of plants takes place thorugh............... .

The exchange of gases in the alveoli of the lungs takes place by

Exchange of gases in lungs is by

Gaseous exchange in plants takes place through

The exchange of gases in old stems takes place from

Discuss the exchange of gases in plants.

Fill in the blanks with suitable words Exchange of gases in the leaves take place with the help of _______

Exchange of gases takes place at the tracheoles by

In earthworm, exchange of gases takes place through