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32: Animal Diversity and the Evolution of Body Plans

Last updated

Dec 2, 2021
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- 31.10: Microsporidia- Unicellular Parasites
- 32.1: Some General Features of Animals

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32.1: Some General Features of Animals
32.2: Evolution of the Animal Body Plan
32.3: Animal Phylogeny
- 32.3.1: Animal Phylogeny
32.4: Parazoa- Animals that Lack Specialized Tissues
The simplest of all the invertebrates are the Parazoans, which include only the phylum Porifera: the sponges. Parazoans (“beside animals”) do not display tissue-level organization, although they do have specialized cells that perform specific functions. Sponge larvae are able to swim; however, adults are non-motile and spend their life attached to a substratum.
32.5: Eumetazoa- Animals with True Tissues
32.6: The Bilateria
- 32.6.1: Molecular Analyses and Modern Phylogenetic Trees

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