Amphibians and Reptiles

1
Amphibians and Reptiles

• Ribbit!

2
Amphibians and Reptiles

• Both cold-blooded vertebrates
• Both have 3-chambered hearts
• Both have a cloaca (intestinal and urinary
  opening)

3
Amphibians

• Moist skin through which water can pass
• Young breathe underwater using gills, as adults
  breathe with their lungs
• Rarely have scales
• Hatch eggs in the water
• Examples Frogs, salamanders, toads, bull frogs

4
Reptiles

• Tough, dry skin with horny scales
• Most adults are carnivorous
• Most hatch from eggs laid on land
• Young and adults breathe with lung
• Eggs have a leathery shell
• Examples Turtles, snakes, lizards, iguanas

5
Frog Dissection

• Label the Frog and Virtual lab