'Unsegmented worms' diaporamas de présentation

Unsegmented worms - PowerPoint PPT Presentation

Pre AP Biology

Pre AP Biology

Pre AP Biology. Animal Kingdom – Invertebrates (8.15) Part 1. Invertebrate Evolutionary Path. Porifera. Porifera Body Structure. Cnidaria Body Structure. Life Cycle showing both forms. Cnidocytes on Tentacles. Platyhelminthes. Platyhelminthes Body Structure. Flame Cells. Turbellaria.

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597 views • 52 slides
Lower animals

Lower animals

Lower animals. Sponges Cnidarians Unsegmented worms. Sponges. Phylum: Porifera. Form & Function. Body wall around central cavity Pores. Water moves in by flagella on collar cells H 2 O moves out of osculum. Make-up. Spicule skeleton CaCo 3 or SiO 2 Spongin protein.

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535 views • 43 slides
Unsegmented Worms

Unsegmented Worms

Unsegmented Worms. Flatworms. Flatworms. Belong to the phylum platyhelminthes . (Plat = flat) There are three classes: Turbellaria Trematoda Cestoda. Characteristics of Flatworms. They are acoelomates (they don’t have body cavities) They have bilateral symmetry Show cephalization

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485 views • 24 slides
Unsegmented Worms

Unsegmented Worms

Unsegmented Worms. Flatworms. Flatworms. Belong to the phylum platyhelminthes . (Plat = flat) There are three classes: Turbellaria Trematoda Cestoda. Characteristics of Flatworms. They are acoelomates (they don’t have body cavities) They have bilateral symmetry Show cephalization

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328 views • 24 slides
Roundworms (Phylum Nematoda)

Roundworms (Phylum Nematoda)

Roundworms (Phylum Nematoda). Features. Bilateral symmetry and 3 cell layers Plus a “pseudocoelom” (fluid filled space betwen the mesoderm and internal organs) Have a complete (one-way) digestive tract (mouth – anus) Mostly free living, but some are parasitic

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449 views • 12 slides
Nematoda - Roundworms Examples: Trichinosis-causing, Filarial, Ascarid , Hookworms

Nematoda - Roundworms Examples: Trichinosis-causing, Filarial, Ascarid , Hookworms

Unsegmented worms that have psedocoelems and digestive systems with two openings. Nematoda - Roundworms Examples: Trichinosis-causing, Filarial, Ascarid , Hookworms. Roundworms. Roundworms. Environment Soil Salt Flats Water- from polar to tropics. Food Source

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604 views • 8 slides

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