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Phylum Porifera

Delve into the fascinating characteristics of various marine phyla, from the ancient Porifera to the diverse Arthropods, showcasing their unique structures, functions, and ecological roles in underwater environments. Discover the intriguing adaptations of organisms such as Cnideria, Roundworms, Flatworms, Segmented Worms, Mollusks, and Echinoderms.

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Phylum Porifera

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

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

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

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

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

  6. Mollusks Characteristics 1. Mantle- shell 2. Visceral Mass- organs 3. Foot- Locomotion • Bivalves 2. Gastropods 3. Cephalopod

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

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

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

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