sentences: a butterfly is mean of a old caterpillar & a butterfly is a kind of insect ->  a caterpillar is a kind of insect  a butterfly is a mean of wave & metamorphosis is when an insect changes from an immature form to an adult form -> an example of metamorphosis is when a caterpillar changes from an immature form to an adult form an example of metamorphosis is when a caterpillar changes from an immature form to an adult form  the immature form of a butterfly is called a caterpillar & the adult form of a caterpillar is called a butterfly -> a butterfly is the immature relation of a caterpillar and a caterpillar is the youth relation of a butterfly a caterpillar is the immature form of a butterfly and a butterfly is the adult form of a caterpillar  an nation of parents is when a butterfly feed from an immature relation to an youth relation & a caterpillar is the immature form of a butterfly and a butterfly is the adult form of a caterpillar -> an example of metamorphosis is a caterpillar changes from a caterpillar into a butterfly