Life in Cold Blood Flashcards
An animal that has a backbone.
Vertebrates
An animal that can use body heat from chemical reactions in the body’s cells to maintain a constant body temperature.
Endotherm
An organism that needs sources of heat outside of itself.
Ectotherm
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.
Lateral Line
A respiratory organ in which oxygen from the water is exchanged with carbon dioxide from the blood.
Gill
Examples: Hagfish and Lamprey.
Jawless fishes
Examples: skates, stingrays, and hammerhead.
Cartilaginous fishes
Examples: Lungfish, masked butterfly fish, and pikes.
Bony fishes
A gas-filled sac that is used to control bouyancy; also known as a gas bladder.
Swim bladder
A respiratory organ in which oxygen from the air is exchanged with carbon dioxide from the blood.
Lung
The aquatic, fish-shaped larva of a frog or toad.
Tadpole
A phase in the life cycle of many animals during which a rapid change from the immature form of an organism to the adult form takes place.
Metamorphosis
Caecilians are a group of limbless, vermiform or serpentine amphibians.
Caecilians
Salamanders are a group of amphibians typically characterized by their lizard-like appearance.
Salamanders
A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura.
Frogs
