Frogs respire in water by skin and buccal cavity and on land by skin, buccal cavity and lungs. Choose the correct answer from the following :
- The statement is false for water but true for land
- The statement is false for both the environments
- The statement is true for water but false for land
- The statement is true for both the environments
Answer
(1) The statement is false for water but true for land
Solution
As per NCERT, frogs respire on land and in water by two different methods.
In water, the skin acts as the aquatic respiratory organ (cutaneous respiration); the buccal cavity is not used. ∴ The statement is false for water.
On land, the buccal cavity, skin and lungs act as the respiratory organs. ∴ The statement is true for land.
Answer: (1)