INVERTEBRATES

MOLLUSKS

• Soft bodies
• Thick muscular foot
• They take in oxygen through gills or lungs
• Some have shell

SPONGES

• Have many pores in their holes in their bodies wyer flows through them
• Very simple animal
• Water goes into a central cravity and out through a big open
• They get food and eliminatewaste through this flow of water
• Specialized for obtaining food and oxygen from water

ARTHROPODS

• Some have wings
• Jointed legs
• They have exoskeletons hard outer shell
• Segmented bodies
• Breathe through gills or air tubes

WORMS

• Have long tube like bodies that are divided into segments
• Simplest organism nervous system blood vessel
• Long digestive tube runs through inner bodies
• Taken in oxygen from water through skin

ECHINODERMS

• They have arms that extend out from the middle of the body
• They have tube feet that take in oxygen from water
• Have a spine