X is a cold-blooded animal which undergoes metamorphosis to develop into an adult and breathes through both lungs and skin. Which of the following animals can be X?
A
B
C
DNone of these
what is cold blooded animal
X is a cold-blooded animal which undergoes metamorphosis to develop into an adult and breathes through both lungs and skin. Which of the following animals can be X?
A
B
C
DNone of these