Cold-Blooded Vertebrate Flashcards
Vertebrates
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.
Ectotherms
An organism that needs sources of heat outside of itself.
Lateral Line
A faint line visible on both sides of a fishes 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 doixide from the blood.
Jawless Fishes
lampreys, and hag-fish
Jawless Fishes
tiger shark, great white shark, and sting ray.
Bony Fishes
lung fish, cat fish, and eel`
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 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.
Lungs
The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax).
tadpole
A tadpole (also called a pollywog) is the larval stage in the life cycle of an amphibian, particularly that of a frog or toad. They are usually wholly aquatic, though some species have tadpoles that are terrestrial.
Metamorphosis
the process of transformation from an immature form to an adult form in two or more distinct stages
Caecilians
Caecilians are a group of limbless, serpentine amphibians. They mostly live hidden in the ground and in stream substrates, making them the least familiar order of amphibians.
Salamanders
Salamanders are a group of amphibians typically characterized by a lizard-like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body, and the presence of a tail in both larvae and adults.