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26 Cards in this Set
- Front
- Back
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How many species are in the phylum Cnidaria? |
Over 9,000 species |
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What are the two layers of the adult cnidarian? |
Epidermis, and ectoderm |
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What is the gastrodermis formed from? |
Ectoderm |
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What does the gastrodermis do? |
It lines the guy cavity and functions mainly in digestion |
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What is in between the endoderm and ectoderm? |
Mesoglea |
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Mesoglea |
An extra cellular matrix that acts like glue between the two layers |
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How much water makes up a jelly? |
95% water |
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Does a jelly have an anus? |
No the mouth and anus are the same hole |
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What are the tentacles used for? |
They aid in feeding |
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Nerve net |
A cnidarians nervous system |
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What is the nerve nets job? |
It helps them respond to stimuli and coordinate activities like feed and traveling |
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Are nervous system found in multicellular or unicellular organisms? |
Multicellular |
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Polyp |
Vase shaped hybrid form adapted to a secile life |
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Where is a polyps mouth? |
It is on top facing upwards |
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Mudusa |
The umbrella or bell shaped form adapted for free floating or weak swimming |
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What are some predators to the jellyfish? |
Sea turtles, sea slugs, ocean sunfish, blanket octopus, and other cnidarians |
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What are the four classes of cnidarians? |
Scyphozoa, cubisoa, hydrsoma, and anthosoma |
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Flement |
Injects barb into prey |
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Sea anemones |
Considered to be the flower of the sea |
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Hydrozoa |
Most dangerous group with siphonophores, hydra, Portuguese man of war, and many others |
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Scyphozoa |
Includes most of the large true jellyfish or “cup animals” |
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Anthozoa |
Largest group which includes true coral, sea anemones, and sea pens |
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Cubisoa |
Box jellies with complex eyes and potent toxins |
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What kingdom does the cnidarian belong to? |
Animalia kingdom |
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What kingdom does the cnidarian belong to? |
Animalia kingdom |
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What is the most poisonous kind of jelly? |
Box jelly |
