Animal Kingdom Question 152
152. Skin is a respiratory organ in
(a) lizards
(b) birds
(c) primitive mammals
(d) frog
Show Answer
Answer : d
Hints & Solutions
(d) Skin in fact is a secondary or accessory respiratory organ in frog when frog undergoes the hybernation or acstivation i.c. winter slecp or summer sleep & when it goes into the water for a long time.