Platyhelminthes
E15742
Platyhelminthes is a phylum of simple, soft-bodied, bilaterally symmetrical invertebrates commonly known as flatworms, which includes both free-living and parasitic species.
Aliases (2)
- Dugesia ×1
- Turbellaria ×1
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
animal phylum
→
taxon → |
| bodyPlan |
triploblastic
→
|
| bodyShape |
dorsoventrally flattened
→
|
| bodySymmetry |
bilateral symmetry
→
|
| cephalization |
present
→
|
| circulatorySystem |
absent
→
|
| coelomType |
acoelomate
→
|
| commonName |
flatworms
→
|
| development |
spiral cleavage
→
|
| digestiveSystem |
gastrovascular cavity
→
incomplete digestive tract → |
| domain |
Eukaryota
→
|
| excretorySystem |
protonephridia with flame cells
→
|
| feedingType |
absorptive nutrition in many parasitic forms
→
carnivorous in many free-living forms → |
| germLayers |
ectoderm
→
endoderm → mesoderm → |
| habitat |
freshwater environments
→
marine environments → terrestrial moist habitats → |
| hasFeature |
gas exchange through body surface
→
high regenerative capacity in many species → lack of specialized respiratory organs → many species are endoparasites → some species are ectoparasites → |
| includesClass |
Cestoda
→
Monogenea → Trematoda → Turbellaria → |
| kingdom |
Animalia
→
|
| larvalStages |
present in many groups
→
|
| lifestyle |
free-living
→
parasitic → |
| locomotion |
cilia in many small free-living species
→
muscular undulations → |
| nervousSystem |
ladder-like nervous system
→
|
| notableMember |
Dugesia
→
Schistosoma mansoni → Taenia solium → |
| parasiticOn |
invertebrates
→
vertebrates → |
| reproduction |
asexual reproduction
→
sexual reproduction → |
| respiratorySystem |
absent
→
|
| scientificNameAuthorship |
Gegenbaur, 1859
→
|
| sexualSystem |
mostly hermaphroditic
→
|
| skeletonType |
lacking true skeleton
→
|
Referenced by (4)
| Subject (surface form when different) | Predicate |
|---|---|
|
Platyhelminthes
("Turbellaria")
→
|
includesClass |
|
Animalia
→
|
includesPhylum |
|
Lophotrochozoa
→
|
includesTaxon |
|
Platyhelminthes
("Dugesia")
→
|
notableMember |