The main difference between Gymnophiona (Apoda) and Urodela is that Urodela [MP PMT 1986]
A) Have two auricles and one ventricle
B) Have smooth moist skin
C) Have a cloaca
D) Respire by lungs in the adult stage
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D) Respire by lungs in the adult stage
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The main difference between Gymnophiona (Apoda) and Urodela is that Urodela is to respire by lungs in the adult stage
Option D
Explanation:
- Class Amphibia consists of those chordates most of which spends their life both in land and water, and they strictly need water for their reproduction.
- In class Amphibia, there’s the subclasses Apoda or the limbless one, Anura or the tailless ones, and the urodela or the tailed amphibians.
- These amphibians do have many different features among these three subclasses.
- But one feature of Amphibians are common throughout the class. All amphibians are born from the eggs.
- There may be external or internal fertilization, but the eggs are layed out and it hatches into a larval form.
- Most of them have a tadpole like structure which is strictly aquatic and respires through gills.
- Then they undergo metamorphosis and changes the whole respiratory circuit from gills to lungs so that they can respire in land.
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