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PHYLUM

Discover the diverse characteristics of Phylum Platyhelminthes, from their bilateral symmetry to three tissue layers. Explore the three classes within this phylum and learn about their unique features, habitats, and life cycles. Delve into terms like Cephalization, Schistosomiasis, and more.

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PHYLUM

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  1. PHYLUM ? The Greek:“platys”means? Platyhelminthes “flat” +The Greek:“helmins”means? “worm”

  2. PHYLUM Platyhelminthes Symmetry? Bilateral Orientation Terms? - Dorsal - Ventral - Posterior - Anterior

  3. PHYLUM Platyhelminthes Size Range? 1 mm to 20 m # Species? 14,500 (BDOL) Habitat? Marine, Fresh H2O & even Moist Land

  4. PHYLUM Platyhelminthes # Tissue Layers? Three 1 Outside? Ectodermis 2 Inside? Endodermis 3 Middle? Mesodermis

  5. PHYLUM Platyhelminthes # Of Classes? Three How Are They Grouped? Parasitic vsFree Living

  6. PHYLUM Platyhelminthes Classes #1 ? 1 Turbellaria - Example? - Planaria

  7. PHYLUM Platyhelminthes Classes #2 ? 1 Turbellaria 2 Trematoda - Example? - Fluke

  8. PHYLUM Platyhelminthes Classes #3 ? 1 Turbellaria 2 Trematoda 3 Cestoda - Example? - Tapeworm

  9. PHYLUM Platyhelminthes Classes 1 Turbellaria 2 Trematoda 3 Cestoda Called? Scolex Note: discs and hooks are located all around the scolex.

  10. PHYLUM Platyhelminthes Called?

  11. PHYLUM GravidProglottids Platyhelminthes These Proglottids are ??

  12. PHYLUM Platyhelminthes • Other Terms(check your book): • Cephalization - Snail (intermediate host for ?) • Schistosomiasis - Name PRIMARY host? • Flame Cells (Why named? Function?) • Ganglia • Pharynx - Tape worm life cycle • Regeneration - Scolex • Sensory Pits • Name organs made from Mesoderm? • Missing Systems? (In Cestoda?)

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