|
gptkbp:instanceOf
|
class of fishes
|
|
gptkbp:class
|
gptkb:Chondrichthyes
|
|
gptkbp:conservationStatus
|
many species threatened
|
|
gptkbp:coveredBy
|
skin with placoid scales
|
|
gptkbp:diet
|
carnivorous
|
|
gptkbp:distinctFrom
|
bony fishes
jawless fishes
|
|
gptkbp:economicImportance
|
gptkb:fish
ecotourism
|
|
gptkbp:firstAppearance
|
gptkb:Devonian_period
|
|
gptkbp:foundIn
|
marine environments
freshwater environments
|
|
gptkbp:hasNo
|
lungs
operculum (in most species)
swim bladder
true bones
|
|
gptkbp:haveAmpullaeOfLorenzini
|
true
|
|
gptkbp:haveElectroreception
|
true
|
|
gptkbp:haveGills
|
5 to 7 pairs
|
|
gptkbp:haveHeartChambers
|
two
|
|
gptkbp:haveJaws
|
true
|
|
gptkbp:haveLiver
|
large, oil-filled
|
|
gptkbp:haveScales
|
placoid scales
|
|
gptkbp:haveSkeletonType
|
collagen
|
|
gptkbp:haveSpiracles
|
true
|
|
gptkbp:haveSwimBladder
|
false
|
|
gptkbp:haveTeeth
|
replaceable
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
cartilaginous fishes
|
|
gptkbp:include
|
gptkb:chimaeras
sharks
rays
skates
|
|
gptkbp:numberOfSpecies
|
over 1,000
|
|
gptkbp:phylum
|
gptkb:Chordata
|
|
gptkbp:reproduction
|
internal fertilization
|
|
gptkbp:respireBy
|
gills
|
|
gptkbp:scientificName
|
gptkb:Chondrichthyes
|
|
gptkbp:studiedIn
|
marine biology
|
|
gptkbp:subfamily
|
gptkb:Vertebrata
|
|
gptkbp:bfsParent
|
gptkb:Chondrichthyes
gptkb:Age_of_Fishes
|
|
gptkbp:bfsLayer
|
5
|