Cold-Blooded Vertebrates Flashcards
(26 cards)
Vertebrates
an animal of a large group distinguished by the possession of a backbone
Endotherms
an animal that is dependent on or capable of the internal generation of heat
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 that detect pressure and vibration
Gills
the paired respiratory organ
Jawless Fishes
Lamprey, Hagfish
Cartilaginous Fishes
shark, stingray, batoids
Bony Fishes
catfish, lungfish, tuna
Swim Bladder
a gas-filled sac present in the body of many bony fishes, used to maintain and control buoyancy
Amphibians
a cold-blooded vertebrate animal
Lungs
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
Tadpole
the tailed aquatic larva of an amphibian
Metamorphosis
the process of transformation from an immature form to an adult form in two or more distinct stages
Caecilians
legless, tailless tropical amphibians, resemble earthworms but have vertebrate characteristics such as jaws and teeth
Salamanders
slender bodies, short legs, and long tails
Frogs
jumping abilities, croaking sounds, bulging eyes and slimy skin
Toads
dry skin, warts, crests behind the eyes, and parotoid glands
Reptiles
a vertebrate animal of a class that includes snakes, lizards, etc. they are distinguished by having a dry scaly skin and typically laying soft-shelled eggs on land
Amniotic Eggs
type of egg produced by reptiles, birds, and prototherian mammals, in which the embryo develops inside an amnion
Turtles
special bony or cartilaginous shell, breathe air and do not lay eggs underwater, four legs
Tortoises
They have four legs and a shell that is joined down the sides
Crocodiles
live throughout the tropics, large aquatic reptiles
Alligators
armored body with a muscular, flat tail, embedded bony plates called osteoderms or scutes
Snakes
elongated, legless, carnivorous reptiles ectothermic, amniote vertebrates covered in overlapping scales