Air is continuously forced through tubes that thread through vascularized tissue in a pair of inelastic lungs in _____.
A) some fish
B) amphibians
C) birds
D) reptiles
E) some small mammals

Question

Air is continuously forced through tubes that thread through vascularized tissue in a pair of inelastic lungs in _____.  
A) some fish
B) amphibians
C) birds
D) reptiles
E) some small mammals

Quizplus · Accepted Answer

The description given is of avian (bird) lungs, where air is continuously forced through tubes that thread through vascularized tissue in a pair of inelastic lungs. This is a unique adaptation that allows for efficient gas exchange, and is not seen in the other options listed.

Air Is Continuously Forced Through Tubes That Thread Through Vascularized