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Consider the following statements abou...

Consider the following statements about respiratory system of frog.
I. Skin acts a respiratory organ in water only.
II. Dissolved oxygen is exchanged through the skin by the process of diffusion in water.
III. Lungs are paired and present in thorax.
IV. Gaseous exchange take place through the skin during hibernation and aestivation.
Which of the statement (s) given above is/are incorrect ?

A

Only I

B

I and III

C

I, II and III

D

II and IV

Text Solution

Verified by Experts

The correct Answer is:
A
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