Define the term ‘Metamorphosis’. List the changes that a tadpole undergoes to develop into a frog.
A marked, and more or less abrupt development change in the structure and habits of an animal occurring during its life cycle, is termed as metamorphosis.
Metamorphosis in tadpole begins with the development of hind legs followed by front legs. Then the lungs develop. The tadpole then begins to swim to the surface of water to breathe. The intestine gets shortened to adapt to a carnivorous diet. The tail gets absorbed by the body during the last stages of metamorphosis.