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Amphibians Part II

Amphibians Part II. Systems, Movement & Regulation. Movement. Salamanders unspecialized legs, s-shaped movement Frogs legs for jumping special toes for attachment Caecilians snake-like. Feeding. Most adults are carnivorous Some herbivores/omnivores Specialized jaws & teeth.

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Amphibians Part II

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  1. Amphibians Part II Systems, Movement & Regulation

  2. Movement • Salamanders • unspecialized legs, • s-shaped movement • Frogs • legs for jumping • special toes for attachment • Caecilians • snake-like

  3. Feeding • Most adults are carnivorous • Some herbivores/omnivores • Specialized jaws & teeth

  4. Gas Exchange • Subcutaneous • Buccopharyngeal • Lungs • Gills

  5. Auditory Systems • Specialized ears for hearing on land • Produce 2 sounds: • High frequency = mating • Low frequency = territory, protection

  6. Excretion • Ammonia • If live in water • Urea • If live on land • Conserves water

  7. Evolutionary Advantages • Skeleton & muscles for moving on land • Moveable jaw and head • Development of specialized eggs • (resist drying out)

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