cold-blooded Flashcards
vertebrates
an animal that has a backbone
endotherm
an animal that can use body heat from chemicalreactions inthe bodys cells to maintain a constant body temperature
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 fishies
Agnatha is an infraphylum of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present and extinct species.
cartilaginous fishies
a fish of a class distinguished by having a skeleton of cartilage rather than bone, including the sharks, rays, and chimeras.
bony fishies
a fish of a large class distinguished by a skeleton of bone, and comprising the majority of modern fishes.
swim bladder
a gas-filled sac present in the body of many bony fishes, used to maintain and control buoyancy.
lung
One of a pair of organs in the chest that supplies the body with oxygen, and removes carbon dioxide from the body.
tadpole
the tailed aquatic larva of an amphibian (frog, toad, newt, or salamander), breathing through gills and lacking legs until the later stages of its development.
metamotphosis
change of physical form, structure, or substance especially by supernatural means the metamorphosis of humans into animals.
caecilians
a burrowing wormlike amphibian of a tropical order distinguished by poorly developed eyes and the lack of limbs.
salamanders
a lizard-like amphibian with an elongated body and tail and short limbs, once thought able to endure fire.
frogs
a tailless amphibian with a short squat body, moist smooth skin, and very long hind legs for leaping.
