Amphibians notes

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Amphibians notes

  1. 1. Vertebrates<br />Amphibians<br />
  2. 2. Characteristics<br />Breathe<br />Lungs and skin<br />Skin<br />Thin; must stay moist<br />Absorb water and oxygen<br />Eggs<br />Must stay in water; young live in water<br />
  3. 3. Double-loop circulatory system3-chambered heart!<br />Why is the double-loop system more efficient than the single-loop system of the fish?<br />
  4. 4. “Double-life”<br />Metamorphosis<br />Tadpole with tail and gills becomes adult without tail and gills<br />Adults have lungs to get oxygen<br />
  5. 5. First vertebrates on land…<br />3 Groups<br />Frogs & toads<br />Salamanders<br />Caecilians<br />
  6. 6. How are frogs and toads similar?<br />How are frogs and toads different?<br />
  7. 7. Warm up<br />How is the frog’s skin like a lung?<br />
  8. 8. What does it mean that amphibians are ectothermic?<br />

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