INVERTEBRATES

MOLLUSKS

• Soft Bodies
• Thick Muscular Foot for Moving & opening/closing their shells
• Have Organs
• Take in Oxygen Through Gills or Lungs
• Some Have Shells

SPONGES

• Very Simple
• Have pores that take in water with food/oxygen
• Water flows through pores out the top hole
• Waste leaves out the top hole
• Specialized cells take food & oxygen out of the water

ARTHROPODS

• Jointed Legs
• Segmented Bodies
• Some Have Wings
• Have Exoskeletons - Hard Outer Covering
• Get Oxygen Through Gills or Air Tubes

WORMS

• Long tube-like bodies
• Nervous system w/a brain
• Blood vessels w/ hearts
• Digestive system
• Take in oxygen through water that goes through the skin

ECHINODERM

• Arms that extend from the middle of body
• Tube feet that take in oxygen & water
• Have spines/spines