Biology (MindTap Course List)
11th Edition
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Chapter31: Sponges, Cnidarians, Ctenophores, And Protostomes
Section31.2: The Lophotrochozoa
Problem 2C: On what basis have biologists classified nemerteans as lophotrochozoans?
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There are over 30 recognized animal phyla, which are the highest-level taxonomic groups of the animal kingdom. Some of the most well-known phyla include:
- Arthropoda (insects, spiders, crustaceans, etc.)
- Chordata (vertebrates such as mammals, birds, fish, reptiles, and amphibians)
- Mollusca (snails, clams, squids, etc.)
- Nematoda (roundworms)
- Annelida (segmented worms such as earthworms and leeches)
- Porifera (sponges)
- Cnidaria (jellyfish, corals, sea anemones, etc.)
- Echinodermata (starfish, sea urchins, etc.)
- Platyhelminthes (flatworms)
- Rotifera (microscopic aquatic animals)
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