No Bones About It.

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  • Author(s): Brunelle, Lynn
  • Source:
    National Geographic Extreme Explorer. Sep2012, Vol. 6 Issue 1, p2-9. 8p.
  • Additional Information
    • Subject Terms:
      INVERTEBRATES; SPONGES (Invertebrates); JELLYFISHES; SEA anemones; FLOWER petals
    • Abstract:
      The article offers information on several invertebrates, sponges and Sea anemones. It states that 95 percent of all animals on Earth are invertebrates, which does not have backbone or spine. It mentions that more than 5,000 kinds of sponges exist. They live in nearly every ocean habitat. Sponges can be soft and quishy or they can be hard as a rock. It states that giant invertebrate anemone clings to a rock. Anemones belong to phylum Cnidaria. Its petals are tentacles that sting.