Before moving on ask yourself if you've met the Learning Targets for this week:

Identify distinguishing characteristics of chordates Describe the difference between jawless and jawed fishes Describe the evolution and advantage of jaws Explain the origin and function of a fish's swim bladder Describe the evolutionary history of amphibians Describe the adaptations of amphibians that help them live on land Summarize the reproduction and development of amphibians

If not take the time to review the ones you are uncertain of, and let your teacher know if you need more help on any of these.