life in cold blood 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.
Endotherm
an animal that is dependent on or capable of the internal generation of heat; a warm-blooded animal.
Ectotherm
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.
Gill
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
jawless fish in the phylum Chordata.
Cartilaginous fishes
class that contains the cartilaginous fishes that have skeletons primarily composed of cartilage.
Bony fishes
bony fish, is a diverse taxonomic group of fish that have skeletons primarily composed of bone tissue.
Swim bladder
gas-filled organ that contributes to the ability of many bony fish.
Lung
a pair of spongy, air-filled organs located on either side of the chest.
Tadpole
aquatic larval stage of frogs and toads.
Metamorphosis
allegorical novella.
Caecilians
a group of limbless, vermiform or serpentine amphibians.
Salamanders
a group of amphibians typically characterized by their lizard-like appearance.
Frogs
member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura.
