1 / 10

Warm up…

Warm up…. What does it mean that amphibians are ectothermic?. Vertebrates. Amphibians. First vertebrates to live on land!. Name means…“Double-life”. Metamorphosis. Eggs have membranes but no shell Begin living in water Tadpole gets oxygen with gills and has long tail for swimming.

morag
Download Presentation

Warm up…

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Warm up… • What does it mean that amphibians are ectothermic?

  2. Vertebrates Amphibians First vertebrates to live on land!

  3. Name means…“Double-life” Metamorphosis • Eggs have membranes but no shell • Begin living in water • Tadpole gets oxygen with gills and has long tail for swimming

  4. In adults, tail and gills disappear and lungs begin to function • Adults live on land; stay near water

  5. Characteristics • Double-looped circulatory system • 3 Heart chambers • Ectothermic

  6. Double-loop circulatory system3-chambered heart! Why is the double-loop system more efficient than the single-loop system of the fish?

  7. Absorb oxygen using: • Lungs and skin • Skin must be thin and stay moist

  8. Three Groups… Salamanders Caecilians Frogs & toads

  9. How are frogs and toads similar? • How are frogs and toads different?

  10. How is the frog’s skin like a lung?

More Related