Sponges- Hollow tube: site of
respiration and digestion
Jelly Fish, Corals and anemones- extracellular
digestion in body cavity, two body forms:polyp
(cylindrical) and medusa (umbrella)
Flatworms- Aquatic species,
distinct head, closed "pouch"
for digestion
Segmented Worms- closed circulatory
system, common "earth worm", mouth to
anus digestion
Molluscs- soft, slugs/snails
etc., organ system and use
gills to breathe
Arthropods- jointed legs,
specialized muscles (jaw& more
developed nerves),
insects/arachnids/crustaceans
Starfish- all are marine ( sea cucumber, sand
dollars starfish amoung others), move using
water and vascular system, "Tube Feet" capture
prey and bring it to the mouth
Chordata- include invertebrates &
vertebrates, dorsal nerve cord,
notorchord (rod of cartillage), gill
slits in the pharynx