Animal Life Cycles

The video explains metamorphosis, a process where animals undergo distinct changes in form. It covers the life cycles of butterflies, moths, and frogs, detailing each stage from egg to adult. Butterflies and moths start as eggs, become larvae, then pupae, and finally adults. Frogs begin as eggs, develop into tadpoles, and transform into adult frogs. The video highlights that while not all animals undergo metamorphosis, many experience significant changes throughout their life cycles.

How does the pupa stage contribute to the metamorphosis of butterflies?

Explain why not all animals undergo metamorphosis.