1.Animals undergo different stages in their life cycle. 2.Metamorphosis is the way the animals develop, change, and grow. 3.There are 3 types of metamorphosis. 4.Egg,larva,pupa,and adult are the stages in the complete metamorphosis. 5.The first stage in a complete metamorphosis is an egg. 6.A frog has 4 stages in its life cycle. 7.The second stage in life cycle of a cockroach is a nymph. 8.During adolescence stage, girls and boys are called teenager. 9.Guman beings find partner and start thier own lives during childhood. 10.Girls begin to menstruate during infancy.