Cold-blooded vertebrate Flashcards
Vertebrates
an animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes.
Endotherms
an animal that is dependent on or capable of the internal generation of heat; a warm-blooded animal
Ectotherms
an animal that is dependent on external sources of body heat.
Lateral Line
a visible line along the side of a fish consisting of a series of sense organs which detect pressure and vibration
Gills
the paired respiratory organ of fishes and some amphibians, by which oxygen is extracted from water flowing over surfaces within or attached to the walls of the pharynx
Jawless Fishes
Birkenia, Cyclostome
Cartilaginous Fishes
sharks, rays, skates and chimaeras.
Bony Fishes
Osteichthyes, popularly referred to as the bony fish, is a diverse taxonomic group of fish that have skeletons primarily composed of bone tissue, as opposed to cartilage.
Swim bladder
a gas-filled sac present in the body of many bony fishes, used to maintain and control buoyancy.