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Cnidarians Jellies, Anemones, CoralsDimorphism: Two body shapes during life cycle. (Polyp & Medusa) Gastrovascular cavity Primitive nerve net Two distinct tissue layers: Epidermis & Gastrodermis Cnidocyte (Stinging cells) Radial Symmetry
Life cycle Reproduction :Most cnidarians reproduce both sexually and asexually.
Classes of Cnidaria Scyphozoa (Cup Animals) Hydrozoa (Serpent Animals)Anthozoa (Flower Animals)
Scyphozoa Scyphozoa True jelliesMedusa form during most of its life cycle. Lions Mane is the most common in L.I.S. Butter fish lives in its tentacles.
Sea Wasp Known as box jellyfish Most powerful venom in the worldLives in Australia Can be up to 60 meters in length
Hydrozoa Both body plans: polyp and medusaReproduce sexually as medusas. Example: Portuguese Man Of War
Anthozoa They are individual or colonies of polyps found in coastal waters. No swimming medusa stage. Examples: Sea anemones,Hard corals, sea fans
Phylum: Ctenophora Ctenophores Common name: Comb jelliesContain eight rows of comb plates made of cilia used for locomotion. Bioluminescent No stinging cells They feed on plankton
All contain nematocysts-stinging structures
Kingdom Animalia Phylum Cnidaria.
Today’s Objectives: 3.4 Describe characteristics of this phylum
Sponges Cnidarians Ctenophores
Porifera: Very Simple Animals...(?)
ANIMAL KINGDOM PHYLUM CNIDARIA Page 76 ABBOTTSCOLLEGE.
Phylum Cnidaria Anemones, Corals, Hydroids and Jellies
MARINE SCIENCE PHYLUM CNIDARIA What are Cnidarians?
Hydra, Jellyfish, Coral, & Sea Anemones
CHAPTER 33 INVERTEBRATES Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings Section B: Radiata 1.Phylum Cnidaria: Cnidarians have.
Corals, Anemones, Sea Fans, and Jellyfish - Aquatic Stinging Nettles
Simple InvertebratesSection 2 CH 27 Phylum Cnidaria Jelly-fish, coral, sea anemones, and hydras.
1 Cnidarians & Ctenophorans 1copyright cmassengale.
Sponges Cnidarians Comb Jellies
35-2 Cnidaria and Ctenophora
Phylum Cnidaria: Station 2
Cnidaria & Ctenophora. Cnidaria Radially symmetrical Tentacles contain nematocysts (stinging cells)
Phylum Cnidaria Cnidarians Include Hydras, jellyfish, sea anemones & corals Radially symmetrical Acoelomate Two basic forms: –Polyp: Cylindrical form which.
Phylum Cnidaria or Coelenterata
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