Zusammenfassung der Ressource
Pisces
- CLASSIFICATION
- Agnatha (Jawless Fishes)
- Group of fishes with a
suctorial or filter-feeding
mouth; no true jaws
- Cyclostomes
- Ostracoderms
(Extinct)
- Lamprey
- Chondrichthyes
(Cartilaginous Fishes)
- Group of fishes that have
skeletons made of cartilage
rather than bone
- Elasmobranchii ( Sharks,
Rays, and Skates)
- Holocephali
(The Chimeras)
- The Great White Shark
- Osteichthyes (Bony Fish)
- Group of fish that have
skeletons primarily
composed of bone tissue, as
opposed to cartilage.
- Actinopterygii
( Ray-finned
FIshes)
- Sarcopterygii
( Lobe-finned
Fishes)
- Salmon
- CHARACTERISCTICS
- They use gills for
respiration.
- The body is usually
streamlined. Some have a
spindle-shaped or elongated
body as well.
- The internal
skeleton is bony or
cartilaginous.
- The nervous system
comprises of the brain and ten
pairs of the cranial nerves.
- They are Ectothermic, which
means they're cold blooded
animals
- Limbless cold-blooded
vertebrate animal
with gills and fins and
living wholly in water.