'Long nerve cords' presentation slideshows

Chapter 37: Mollusks and Annelids

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Chapter 27 Worms and Mollusks

Chapter 27 Worms and Mollusks. 27-1 Flatworms. What is a Flatworm?. What are some of the defining features of flatworms?. What is a flatworm?. Flatworms are soft, flattened worms that have tissues and internal organ systems.

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Phylum Rotifera

Phylum Rotifera. Phylum Rotifera. Known as rotifers or wheel animals Transparent, free-swimming microscopic animal Freshwater & marine Have a ring of cilia around mouth that rotates like a wheel to bring in food Feed on unicellular algae, bacteria, & protozoa

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