cold blooded vertebrate Flashcards
an animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes.
Vertebrates
an animal that is dependent on or capable of the internal generation of heat; a warm-blooded animal.
Endotherms
an animal that is dependent on external sources of body heat.
Ectotherms
a visible line along the side of a fish consisting of a series of sense organs which detect pressure and vibration.
Lateral Line
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.
Gills
Agnathan, Ostracoderm
Jawless Fishes
shark, stingray, saw fish
Cartilaginous Fishes
catfish, eel , lungfish
Bony Fishes
a gas-filled sac present in the body of many bony fishes, used to maintain and control buoyancy.
Swim Bladder
a cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, and salamanders. They are distinguished by having an aquatic gill-breathing larval stage followed (typically) by a terrestrial lung-breathing adult stage.
Amphibians
each of the pair of organs situated within the rib cage, consisting of elastic sacs with branching passages into which air is drawn, so that oxygen can pass into the blood and carbon dioxide be removed. Lungs are characteristic of vertebrates other than fish, though similar structures are present in some other animal groups.
Lungs
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.
Tadpole
(in an insect or amphibian) the process of transformation from an immature form to an adult form in two or more distinct stages.
Metamorphosis
a burrowing wormlike amphibian of a tropical order distinguished by poorly developed eyes and the lack of limbs.
Caecilians
a lizard-like amphibian with an elongated body and tail and short limbs, once thought able to endure fire.
Salamanders
a tailless amphibian with a short squat body, moist smooth skin, and very long hind legs for leaping.
Frogs
a tailless amphibian with a short stout body and short legs, typically having dry warty skin that can exude poison.
Toads
a vertebrate animal of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin and typically laying soft-shelled eggs on land.
Reptiles
amniotic egg The type of egg produced by reptiles, birds, and prototherian (egg-laying) mammals (amniotes), in which the embryo develops inside an amnion. The shell of the egg is either calcium-based or leathery. “amniotic egg.” A Dictionary of Biology
Amniotic Eggs
a slow-moving reptile, enclosed in a scaly or leathery domed shell into which it can retract its head and thick legs.
Turtles
a turtle, typically a herbivorous one that lives on land.
Tortoises
a large predatory semiaquatic reptile with long jaws, long tail, short legs, and a horny textured skin, using submersion and stealth to approach prey unseen. The crocodile has been extensively hunted for its valuable skin.
Crocodiles
a large semiaquatic reptile similar to a crocodile but with a broader and shorter head, native to the Americas and China.
Alligators
a long limbless reptile which has no eyelids, a short tail, and jaws that are capable of considerable extension. Some snakes have a venomous bite.
Snakes
a reptile that typically has a long body and tail, four legs, movable eyelids, and a rough, scaly, or spiny skin.
LIzards
a nocturnal burrowing lizard-like reptile with a crest of soft spines along its back, now confined to some small islands off New Zealand.
Tuataras
