Invertabrates

Roundworms, Flatworms-Diana

Roundworms

  • Have organs
  • Microorganisms
  • Round tube-like body
  • Some are parasitic-they are parasites
  • Move in a whip-like motion
  • Reproduce sexually


Flatworms

  • Flattened body
  • Digestive system with only one opening
  • Simple nervous system
  • About an inch long
  • Usually live in damp fresh water environments
  • Eat through a straw-like tube
  • Triangle-shaped heads
  • Reproduce sexually