Protostomes. Porifera Cnidaria Ctenophora Acoelomorpha Rotifera Platyhelminthes Annelida Mollusca Nematoda Tardigrada Onychophora Arthropoda Coelom Bilateral.

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Presentation transcript:

Protostomes

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

Lophophore Bryozoans

Phylum Rotifera Click here for video of rotifers

Phylum Platyhelminthes

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

Diffusion

Platyhelminthes - Planaria

Planarian video here

Phylum Annelida

Hydraulic movement in a tubular animal

Phylum Mollusca

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

Ecdysozoa

Phylum Nematoda

See Nematode movement here

Phylum Arthropoda

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

Generalized arthropod -Segments -Exoskeleton -Ventral nervous system with anterior, dorsal brain

tagmatization

Tracheal system -Spiracles -Trachea -tracheoles

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