INVERTEBRATES

MOLLUSKS

• Soft bodies
• Thick muscular foot
• Take in oxygen through gills or lungs
• Some have shells

SPONGES

• Very simple
• Have pores that take in water with food and oxygen
• Water flows through pores and out the top hole
• Waste leaves Out The Topof the
• Specialized cells take food and oxygen out of the water

ARTHROPODS

• Jointed legs
• Segmented bodies
• Some have wings
• Have hard covered body
• Get oxygen through gills or air tubes

WORMS

• Have long, tube-like bodes divided into segments
• Have blood vessels
• Take in oxygen through most skin
• Have digestive system

ECHINODERMS

• Have arms that extend-out from middle of there body
• Have spines
• Have tubed feet that take in oxygen from the water