Exchange of Gases in Frogs

Q.

What animal can hold breath for 6 days?

Q. The organs of gaseous exchange in Amphitrite is/are

1. general body surface
2. trachea
3. external gills
4. book lungs

Q.

Select the correct option

The chief respiratory organ of human being is the

1. Lungs

2. Skin

3. Gills

4. Spiracles

Q. Spot the incorrect statement.

1. Fishes have counter-current exchange of gases
2. Molluscs use gills whereas earthworms use moist skin for respiration
3. Frogs respire through skin and lungs
4. Cockroaches have blood that helps primarily in gaseous transport

Q. Match the organism to their organ of respiration.

1. Cell membrane
2. Gills
3. Skin
4. Lungs