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41 Cards in this Set
- Front
- Back
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Cnidarian characteristics (5) |
Gastrovascular cavity dimorphic (usually) nerve net musculature no excretory or respiratory system |
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how do cnidarians excrete waste and exchange gasses? |
diffusion |
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defining cnidarian characteristics (2) |
planula larva cnidocytes with cnidae |
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tissue layer products (ectoderm & endoderm) |
ectoderm - epidermis endoderm - gastrodermis |
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mesoglea (def & included cells) |
gelatenous layer amoebocytes |
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cnidocyte vs cnidae vs nematocysts |
Cnidocyte - cells
cnidae - organelles nematocysts - stinging cnidae |
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cnidae - 3 functions |
adhesive, spearing, toxic |
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cnidae are found where |
epidermis gastrodermis |
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nematocyst parts (4) |
sac operculum coiled tube cnidocil |
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nematocyst (operculum) |
covering for sac |
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nematocyst (cnidocil) |
trigger |
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what king of nerve system do cnidaria have? |
nerve net |
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cnidarian musculature cells (2) |
epitheliomuscular cells nutritive muscular cells |
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epitheliomuscular cells (2 functions) |
form outer epidermis longitudinal musculature |
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nutritive muscular cells (2 functions) |
intracellular digestion circular muscle |
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class Scyphozoa - common name |
true jellies |
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class scyphozoa means of asexual reproduction |
strobilation |
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scyphozoa progression of ingestion |
tenticles -> mouth -> manubrium (throat) -> stomach -> 4 gastric pouches (many nematocysts) -> gastric canals |
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sensory system location (scyohozoa) |
margin of bell |
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sensory structures bear (6) (scyphozoa) |
rhopalium statocyst statolith sensory cilia ocellus lappets |
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rhopalium statocyst statolith ocellus lappets |
rhopalium - tube of tissue statocyst - balance statolith - weight ocellus - light lappets - touch, chemicals |
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class cubozoa life cycle |
no strobilation polyps bud polyps which become medusa |
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class hydrozoa prominent morph |
polyp |
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class hydrozoa habitat |
most SW some FW |
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Order Hydroida (hydrozoa) oral adaptation and function |
velum - stronger swimmer |
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Order Hydroida (hydrozoa)polyp adaptation |
colonial zooids |
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hydrozoan zooid types |
gastrozooids - feeding gonozooids - reproduction dactylzooids - defense |
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Order siphonophora (hydrozoa) what are they |
free floating hydroid colonies
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Order siphonophora (hydrozoa) example |
Portuguese Man O War |
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Order siphonophora (hydrozoa) medusoid morphs (2) |
pneumatophores - gas filled float bracts - defensive modules |
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Class Myxozoa were thought to be |
protozoans |
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Class Myxozoa lack which morph |
medusa |
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Class Myxozoa lifestyle |
parasitic |
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Class Anthozoa has an absence of (3) |
medusa operculum cnidocil |
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Class Anthozoa have specialized GV cavity (3) |
mouth to pharynx siphonoglyphs - grooves on pharynx septa - folds in GV cavity |
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Anthozoan defenses (3) |
acontia - subdue and digest prey acrorhagi - defend territory catch tenticles - fighting |
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Class Anthozoa asexual reproduction (3) |
fission - longitudinal or transverse pedal laceration fragmentation |
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Class Anthozoa sexual reproduction (2) |
usually dioecious
polyps release gametes |
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Class Anthozoa subclass Hexacorallia - 2 types |
anemones corals |
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coral cover made of |
CaCO3 |
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Class Anthozoa subclass octocorallia (3 types) |
polymorphic colonies soft corals sea fans/whips |
