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Protostomes

Protostomes. Porifera. Cnidaria. Ctenophora. ANIMALS. Acoelomorpha. LOPHOTROCHOZOA. Rotifera. Platyhelminthes. Annelida. Bilateral symmetry. Mollusca. Protostome development. PROTOSTOMES. ECDYSOZOA. Nematoda. Tardigrada. Coelom. Onychophora. Arthropoda. Echinodermata.

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Protostomes

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  1. Protostomes

  2. Porifera Cnidaria Ctenophora ANIMALS Acoelomorpha LOPHOTROCHOZOA Rotifera Platyhelminthes Annelida Bilateral symmetry Mollusca Protostome development PROTOSTOMES ECDYSOZOA Nematoda Tardigrada Coelom Onychophora Arthropoda Echinodermata Chordata

  3. Lophophore Bryozoans

  4. Phylum Rotifera Click here for video of rotifers

  5. Phylum Platyhelminthes

  6. Beat diffusion by being flat - Increase size without increasing distance to each cell

  7. Diffusion

  8. Platyhelminthes - Planaria

  9. Platyhelminthes - Planaria Planarian video here

  10. Phylum Annelida

  11. Hydraulic movement in a tubular animal

  12. Phylum Mollusca

  13. Porifera Cnidaria Ctenophora ANIMALS Acoelomorpha LOPHOTROCHOZOA Rotifera Platyhelminthes Annelida Bilateral symmetry Mollusca Protostome development PROTOSTOMES ECDYSOZOA Nematoda Tardigrada Coelom Onychophora Arthropoda Echinodermata Chordata

  14. Ecdysozoa

  15. Phylum Nematoda

  16. See Nematode movement here

  17. Phylum Arthropoda

  18. 2x Area = 1 Strength = 1 Weight = 1 Strength/wt = 1 Area = 1 Strength = 4 Weight = 8 Strength/wt = 1/2

  19. Generalized arthropod • Segments • Exoskeleton • Ventral nervous system with anterior, dorsal brain

  20. tagmatization

  21. Tracheal system • Spiracles • Trachea • tracheoles

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