Structural Organisation In Animals Question 212

Question: The lungs in frogs are

Options:

A) Compact spongy masses

B) Thin-walled elastic, hollow bags

C) Thick-walled nonelastic, hollow bags

D) Thick-walled nonelastic solid masses

Show Answer

Answer:

Correct Answer: B

Solution:

The lungs of frog are two delicate, elastic, pinkish, ovoid, thin walled hollow sacs lying on either side of the oesophagus.