State whether the following statements are true or false :

(a) During respiration, the plants take C0₂ and release O₂.

(b) Energy can be produced in cells without oxygen.

(c) Fish and earthworm exchange gases during respiration in the same way.

What organs are attached to the two bronchi?

In the lungs:

(a) what substance is taken into the body ?

(b) what substance is removed from the body ?

Fill in the following blanks with suitable words:

(a) The organs of respiration in man are the.................

(b) The actual exchange of gases takes place in the................of the lungs.

(c) ..................in the lungs provide a very large surface area for gaseous exchange.

(d) Yeast undergoes..............respiration whereas Amoeba undergoes..................respiration.

(e) Gills are the breathing organs in................

Explain why, a land plant may die if its roots remain waterlogged for a long time.