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13 Cards in this Set
- Front
- Back
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What else are the Radiata referred to as? |
Cnidaria
cnide= nettle
refers to their stinging cells, although not all have them |
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How many different body forms do Radiata have?
what do they have in common? |
2: Polyps and Medusae
both are diploblastic, just two layers, with a variable amount of jelly between the layers |
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what polyp has amazing regen abilities?
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Hydra |
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what are thecolonial polyps commonly called? |
soft and hard coral |
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What are the medusae division of the radiata? |
They are the free-swimming radiata
includes jellies |
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What is a Nemayocyst? |
stinging structures on most radiata/ Cnidria
a small stimulus causes a tiny thread (nema) to burst out
fastest spead 2ms, 40,000g acceleration
inject predator or prey with neurotoxin |
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What is awesome about mouth of radiata? |
Also acts as anus, reason why they cant have large prey |
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features of box jellyfish? |
box jellyfish = Cubozoans, smong most sophisticated of mudusa
good vision for ocean conditions |
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What organism do some radiata live in symbiosis in? |
team up with dinoflagulates
anemones and corals |
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what organism that provides ecosystems all over world is in big danger from global warming? |
Hard corals |
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Features of hard corals? |
calcium carbonate shells, polyps can retreat into
most also have tenticles
harvest light from dinoflagulate partners in day
exeptions are those that live in lighless regions ( will ahve no colour cos no dinoflag)
the deep sea ones like mushroom corals, hae large polyps are they eats lots |
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How many layers do Bilateria have? |
All 3;
Endoderm, mesoderm, and ectoderm
allowing for more diversity |
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Flatworms? |
have no cavity/ no colem ( Acoelomate)
distinct anterior posterior,
sensory area and eyespots concentrated anterior (cephalisation) |
