Question

Identify the amphibian which has gills in its adult stage.

• A. Toads
• B. Aquatic frogs
• C. Limbless amphibian
• D. Mud puppy

Answer 1

The correct option is D Mud puppy

Mud puppies are a type of salamander that have bushy, red external gills. These gills grow in the larval stages and are never lost. Skin and lung respiration is not sufficient for them and hence, they rely on feathery external gills for gas exchange.
Toads and the aquatic frogs have gills in their tadpole stage but later get replaced by lungs. The limbless amphibians, Caecilians/Ichthyophis breathe with the help of skin and lungs.

Common mudpuppy