Cnidaria, also known as Coelantrata , are a Phylum of Kingdom Animalia under Sub-Kingdom Eumetazoa which consists of aquatic, jelly-like organisms.

Characteristic FeaturesEdit

  • Have specialised cells called Cnidocytes that are used to capture prey
  • Solely aquatic
  • Have a simple nervous system
  • May be Polyp - nonmotile, or Medusa - motile.
    • Some show Alternation of Generation between the two.

Further ClassificationEdit

  • Sub-Phylum: Medusozoa
  • Sub-Phylum: Myxozoa


  • Cnidarians can reproduce both sexually and asexually.
    • Some Cnidarians have the ability to do both.

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