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26 Cards in this Set
- Front
- Back
defining feature: |
cnidocysts |
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cnidocysts contain: |
nematocysts |
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symmetry: |
radial |
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body types: |
polyp and medusa |
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germ layers? |
two, diploblastic |
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ECM jelly layer between the body layers.... |
mesoglea |
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digestion is: |
incomplete |
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diggestion happens TWO ways: |
intracellular and in the gut |
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sense organs include: |
ocelli and statocysys, nerve net |
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reproduction type: |
asexual (budding) and sexual (gemetes, planular larvae) |
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excretory and respiratory systems are: |
ABSENT |
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acoelomate, pseudocoelomate or coelomate? |
TRICK. NONE. only two tissue layers! |
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do they have a skeleton? |
hydrostatic only |
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digestion in.... |
gastrovascular cavity, |
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Classes of cnidarian: (5) |
hydrozoa, cubozoa, staurozoa, anthozoa, scyphozoa |
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The two layers are: |
gastrodermis and epidermis |
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what makes up a cnidocyst: |
cnidae capsule, thread, operculum |
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Class hydrozoa features: |
some freshwater, velum, medusa |
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Class scyphozoa features: |
four oral arms, no velum, has ocelli and rhopalium, reduced polyp, strobilation |
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Class cubozoa features: |
reduced polyp, square shape, rhopalium, velum, medusa |
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Class staurozoa features: |
ATTACHED medusa, stalked polyp. |
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Class Anthozoa features: |
corals, sea pens, symmetry of 6, NO medusa. |
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strobilation is: |
lateral budding of medusa! |
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cnidaria respiration: |
cellular |
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cnidaria reproduction: |
gonads in bell |
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cnidarian nervous: |
nerve net around bell ring |