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Major marine invertebrate phyla powerpoint
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Major marine invertebrate phyla powerpoint

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  • 1. Major Marine Invertebrate Phyla
  • 2. SYMMETRY pentamerous radial symmetry
  • 3. Phylum Porifera
    • Example: sponges
    • No symmetry = asymmetrical
    • Simplest animals
    • No organs or true tissues
    • Many pores
  • 4. Phylum Cnidaria
    • Examples: jellyfish, corals, anemones, hydra
    • Radial symmetry
    • The stingers
    • Two tissue layers
    • No organs
  • 5. Phylum Ctenophora
    • Examples: comb jellies
    • Radial symmetry
    • Harmless bioluminescent jellies
  • 6. Phylum Platyhelminthes
    • Examples: flatworms
    • Bilateral symmetry
    • Simple marine worms
  • 7. Phylum Annelida
    • Examples: polychaete worms, earthworm
    • Bilateral symmetry
    • Advanced marine worms
    • Segmented bodies
  • 8. Phylum Mollusca
    • Examples: clam, snail, octopus, squid
    • Bilateral symmetry
    • Soft-bodied invertebrates with large “foot”
  • 9. Phylum Arthropoda
    • Examples: crab, shrimp, lobster, insects, arachnids
    • Bilateral symmetry
    • Exoskeleton
    • Segmented body with jointed appendages
  • 10.  
  • 11. Phylum Echinodermata
    • Examples: sea stars, sea urchins, sea cucumbers
    • Pentamerous radial symmetry
    • The “stars”
    • Spiny skin
  • 12.