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28 Cards in this Set
- Front
- Back
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Which cnidarian is always a polyp? |
Anthrozoan |
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What does a budding polyp produce? |
Medusa |
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Organs & Tissues : sponges? |
No organs or tissues |
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Organs & Tissues : Cnidarians |
Have tissues but no organs |
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What is the cnidarian digestive tract? |
Incomplete, no anus |
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What do jellyfish sting their prey with? |
Nematocysts |
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What do polyps produce? |
Medusa |
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Types of reefs |
Fringing, barrier, atolls |
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Are Medusa motile or sessile? |
Motile |
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Polyps are sessile or motile? |
Sessile |
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What is the life cycle of the aerella |
Medusa, gametes, planula, metamorphism, adult colony |
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What do mudusa release when reproducing? |
Sperm & egg |
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In sponges where does fertilization occur? |
Mesohyl |
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Sponges are prokaryotic or eukaryotic? |
Eukaryotic |
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What are the classes that are the exception to the rule of all polyps are sessile? |
Hydra |
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Have a single late oscula Their body is thicker The water enters through numerous small ostia and passes through incurrent canals before reaching the large central cavity |
Syconoid |
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This system is found in calcrea and hexacginellida |
Syconoid |
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One large oscula and many small ostia The ostia lead to numerous incurrent canals but there is no large central cavity |
Leuconoid |
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Small tube shaped The water enters tiny otia into one large internal cavity called spongocoel and is then expelled through one large oscula |
Asconoid |
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This type of canal system is found in the calcarea class |
Asconoid |
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What canal? |
Ascon |
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What canal? |
Sycon |
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What canal? |
Leucon |
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Found in the calcrea class |
Asconoid |
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Can have all 3 canal systems |
Calcerea |
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Can have syconoid or leuconoid canal systems |
Hexactinellida |
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Most jelly fish are in what group? |
Scyphozoa |
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Name two anthozoan species? |
Anemone & coral |
