Phylum Porifera Porifera Pore Bearers Most Ancient Animal

Phylum Porifera • Porifera= Pore Bearers • Most Ancient Animal. (evolved from ? ) • Sessile • No mouth or organs • Filter Feeders 1. 2. 3. 4. Uses Underwater Caves Medicine- makes toxic compounds that kill bacteria and fungi Home to marine animals (shrimp, snails, starfish) Bathing/ Cleaning

Phylum Cnideria • • • Characteristics marine soft bodied carnivore- stinging cells/ tentacles 2 Body Forms 1. Polyp- vase shaped, sessile, tentacles upward Ex. Sea Anemone 2. Medusa- Umbrella shaped, mobile, tentacles downward. Ex. Jellyfish

Characteristics • Unsegmented • Round Shape • Soil/ Internal Parasites 1. Pinworms Roundworms 2. Hookworms 3. Filarial Worms • Elephantitis 4. Ascaris

Flatworms (platyhelminthes) Characteristics • Unsegmented • Flat • Senses/ Body Sytems 1. Planaria 2. Tapeworm 3. Fluke Life Cycle

Segmented Worms (Annelids) Characteristics • Segmented • Specialized Organs 1. Earthworms 2. Leeches Uses of Annelids 1. Fishing 2. Landscapers- earthworms aerate soil 3. Medical- leeches remove bruises

Mollusks Characteristics 2. Gastropods 1. Mantle- shell 2. Visceral Massorgans 3. Foot- Locomotion 3. Cephalopod 1. Bivalves

Arthropods (Joint Foot) • • Characteristics Crustaceans Segmented Bodies Mandible- mouth Exoskeleton- chitin Claws Jointed Appendages Cephalothorax- fused head and neck Compound Eye Molting- losing outer skeleton Mouth Parts Most Members

Arachnid • Spiders Arthropods Insects • Flying • Mites • Jumping • Horseshoe Crab • Social

Echinoderms (spiny skin) • 5 part radial system • Water Vascular System • Madreporite • Skin Gills Starfish Sea Urchin Sea Cucumber