EMBRYOLOGY
RESPIRATORY SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Through gills
|
|
|
Through gills and lungs
|
|
|
Through lungs and skin
|
|
|
Through gills, lungs and skin
|
Detailed explanation-1: -How do amphibians breathe? Most amphibians breathe through lungs and their skin. Their skin has to stay wet in order for them to absorb oxygen so they secrete mucous to keep their skin moist (If they get too dry, they cannot breathe and will die).
Detailed explanation-2: -Since they lack lungs, all plethodontids breathe through their skin and the mucous membrane in the mouth and throat; these surfaces must remain moist at all times in order to absorb oxygen. All lungless salamanders possess a pair of nasolabial grooves, and each groove extends from the upper lip to a nostril.
Detailed explanation-3: -So, among these three animals, earthworms and frogs can respire through skin but only frogs can respire through lung and skin both. So, the correct option will be frog.