Phylum Cnidaria The Things that Sting

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=_syLoAgitPY

Welcome to Phylum Cnidaria! Here we start getting into the slightly more complex animals, just barely beating out the sponges. A defining characteristic in this phylum is their stinging cells: the cnidocytes. You can watch this cool video about cnidocytes (and how the stinging organelle, nematocysts, work) by checking out this 6 minute video by some researchers in Australia: • Jellyfish Stinging in MICROSCOPIC SLO... . • This group contains various classes of stinging animals such as: • Class Scyphozoa - Marine jellyfish ( • Class Scyphozoa: Taking on the Jellies ) • Class Anthozoa - Sea anemones and coral ( • Class Anthozoa: The Flower Animals ) • Class Cubozoa - Box Jellyfish (video coming...sometime...) • Class Hydrozoa - Everything else that stings (video coming...sometime...) • As always, phylogeny changes constantly as we learn new techniques to better explain the evolutionary relationships between organisms. These videos follow along with the free, online textbook OpenStax Biology 2e (https://openstax.org/books/biology-2e...) in Chapter 28.2: Phylum Cnidaria. This textbook also has review questions that are easily available to everyone for you to practice these topics more.

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