Cnidaria
E15322
Cnidaria is a phylum of mostly marine animals, including jellyfish, corals, sea anemones, and hydras, characterized by radial symmetry and specialized stinging cells called cnidocytes.
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
phylum
→
|
| alsoFoundIn |
freshwater
→
|
| bodyForm |
medusa
→
polyp → |
| bodySymmetry |
radial symmetry
→
|
| characterizedBy |
alternation of polyp and medusa stages
→
cnidocytes → diploblastic body plan → gastrovascular cavity → nematocysts → radial symmetry → single body opening → |
| commonName |
cnidarians
→
|
| containsSymbioticAssociationsWith |
photosynthetic dinoflagellates
→
zooxanthellae → |
| domain |
Eukaryota
→
|
| ecologicalRole |
habitat formation
→
predator → prey → reef building → |
| feedingMode |
carnivorous
→
suspension feeding → |
| fossilRecordExtendsBackTo |
Ediacaran
→
Precambrian → |
| germLayers |
ectoderm and endoderm
→
|
| hasCirculatorySystem |
absent
→
|
| hasExcretorySystem |
absent
→
|
| hasNervousSystem |
nerve net
→
|
| hasOrganLevelOrganization |
false
→
|
| hasRespiratorySystem |
absent
→
|
| hasTissueLevelOrganization |
true
→
|
| includesClass |
Anthozoa
→
Cubozoa → Hydrozoa → Scyphozoa → Staurozoa → |
| includesOrganismType |
corals
→
hydras → jellyfish → sea anemones → |
| kingdom |
Animalia
→
|
| larvalStage |
planula larva
→
|
| notableFeature |
simple body organization
→
stinging tentacles → |
| primaryHabitat |
marine
→
|
| reproductionMode |
asexual reproduction
→
sexual reproduction → |
| skeletonType |
hydrostatic skeleton
→
|
| someHaveSkeletonType |
calcium carbonate exoskeleton
→
proteinaceous skeleton → |