Life Cycles

A. Life Cycle A life cycle is a behavior or stage that occurs once in a lifetime. It is repeated generation after generation. ALL animals have a life cycle

B. Mammals 1. White-tailed Deer Fertilized Egg Embryo Fetus Fawn Adult 2. Bobcat Fertilized Egg Embryo Fetus Kitten Adult

C. Birds 1. Pheasant Fertilized Egg Embryo Fetus Chick Adult Review: What are the first three stages of ANY mammal life cycle? Fertilized Egg and Embryo

D. What is a larva? A larva is an immature stage that looks different than an adult Beetle larva

E. Amphibians 1. Frog Fertilized Egg Larva (tadpole) Adult Review: A larva is a(n) … –A. Immature stage that looks like an adult –B. Immature stage that looks different than an adult –C. Just plain childish and immature

F. What is a pupa? –A dormant or resting stage to get through winter G. What is a Nymph? –A stage that looks like the adult but has no wings Monarch Butterfly Pupa Dragonfly Nymph – caught at Hidden Pond

H. Insects 1. Monarch Butterfly Fertilized Egg Larva Pupa Adult 2. Dragonfly Fertilized Egg Nymph Adult

Review A toad’s life cycle is similar to a frog. Predict the life cycle of a toad. __________ _________ Adult #1 #2 #1- Fertilized Egg #2- Larva (tadpole)