Animals 2 - Animals 2 Lophotrochozoa All of these organisms...

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1 Animals 2 All of these organisms Have been around for A very long time! Lophotrochozoa • Two animal groups included: – Lophophorata • Possess a lophophore (a feeding apparatus that has hollow tentacles) – Trochozoa • Molluscs, annelids • Have a trochophore larva Arthropods Annelids? Like Brittany and Kevin… these two broke up! Lophophorata Trochozoa
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2 Fig. 32.13 Lophophore ecdysis (molting) See Fig. 32.12 Acoelomate Lophotrochozoa Platyhelminthes Flatworms • Both free-living and parasitic (tapeworms)! • Gut is incomplete • Some can regenerate missing part of body, and/or produce things like double heads Sensory and muscular systems getting better developed…
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3 Dugesia , a flatworm Lung Fluke Tapeworm! Pseudocoelomate Lophotrochozoa Rotifera Nemertea “Wheel animacules”
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A nemertine worm (status of its pseudocoelom is actually in question… Coelomate Lophotrochozoa I Lophophorate Phyla Bryozoa Brachiopoda Phoronida Lophophorata Trochozoa Coelomates Lophophore
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This note was uploaded on 04/24/2008 for the course BIOL 103 taught by Professor Foster during the Fall '08 term at Clark University.

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Animals 2 - Animals 2 Lophotrochozoa All of these organisms...

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