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Cnidarian True/False

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  • Cnidarians are animals.
    True
  • Nematocysts are inside the cnidocytes.
    True
  • Jellyfish spend their entire lives in the polyp body form.
    False
  • Hydra live in freshwater environments.
    True
  • Cnidarian reproduce asexually and sexually.
    True
  • Jellyfish are triploblastic with 3 cell layers.
    False
  • Cnidocytes are stinging cells.
    True
  • Jellyfish are in phylum porifera.
    False
  • Box jellyfish venom is considered to be among the most deadly in the world.
    True
  • Cnidarians have all the same major organ systems as humans.
    False
  • Corals and Sea Anemones are in class scyphozoa.
    False
  • Sponges and jellyfish belong to phylum cnidaria.
    False
  • The basic body plans of cnidarians are polyp and medusa.
    True
  • Cnidarians digest food extracellularly.
    True
  • Coral casings are made of silica.
    False
  • Some jellyfish are bioluminescent.
    True
  • Cnidarians show bilateral symmetry.
    False
  • Cnidarians only have one body opening.
    True
  • Hydra and the portuguese man o' war are in class hydrozoa.
    True
  • The box jellyfish is in class cubozoa.
    True
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