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:
Answer: (A) The statement is false for water and but true for land. Answer: (A) The statement is false for water and but true for land.
- A.The statement is false for water and but true for land✓
- B.The statement is false for both the environment
- C.The statement is true for water but false for land
- D.The statement is true for both the environment
Correct Answer
(A) The statement is false for water and but true for land
Solution & Explanation
Answer: (A) The statement is false for water and but true for land. In water a frog respires only through the skin (cutaneous respiration) and NOT through the buccal cavity, so the water part of the statement is false. On land the buccal cavity, skin and lungs all act as respiratory organs, so the land part is true. NCERT (Class XI, Ch 7 Structural Organisation in Animals): p.82, lines 13-16 — "In water, skin acts as aquatic respiratory organ (cutaneous respiration)... On land, the buccal cavity, skin and lungs act as the respiratory organs."