Cold-Blooded Vertebrates Flashcards
Vertebrate
An animal that has a backbone.
Endotherms
An animal that can use body heat from chemical reactions in the body’s cells to maintain a constant body temperature.
Ectotherm
An organism that needs sources of heat outside of itself.
Lateral Line
A faint line visible on both sides of a fish’s body that runs the length of the body and marks the location of sense organs that detect vibrations in water.
Gills
A respiratory organ in which oxygen from the water is exchanged with carbon dioxide from the blood.
Jawless fishes
Hagfish & lamprey
Cartilaginous
Manta ray, skate, and ratfish.
Bony FIshes
Cat Fish
Cichild
lungfush
Swim Bladder
An internal gas-filled organ that contributes to the ability of many bony fish.
Amphibians
Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia. Typically start out as larvae living in water.
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 breathing through gills and lacking legs until its later stages of development.
Metamorphosis
The process of transformation from an immature form to an adult form in two or more distinct stages.
Caecilians
A burrowing wormlike amphibian of a tropical order distinguished by poorly developed eyes and the lack of limbs.
Salamanders
A newtlike amphibian that typically has bright markings, and that once was thought to be able to endure fire.