Vertebrates

• Mammals:

  • Fur/hair on skin
  • Can live on land and in water
  • 4 limbs
  • Lungs to breathe
  • Give birth to live young
• Reptiles:

  • Scales on skin
  • Usually 4 legs
  • Lungs to breathe
  • Hard eggs
• Fish:

  • Wet scales
  • External fertilization and soft eggs
  • Gills to breathe
• Amphibians:

  • Smooth, moist skin
  • External fertilization and soft eggs
  • Gills/lungs to breathe so can live on land and in water
  • 4 legs
• Birds:

  • Feathers on body and scales on legs
  • Have 2 legs and 2 wings
  • Lungs to breathe
  • Hard eggs