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
Toad is a common name for certain frogs, especially of the family Bufonidae.
Toads
A type of egg that is surrounded by a membrane, the amnion, and that in reptiles, birds, and lay-egging mammals contains a large amount of yolk and is surrounded by a shell
Amniotic egg
Turtles are an order of reptiles known as Testudines, characterized by a shell developed mainly from their ribs.
Turtle
Tortoises are reptiles of the family Testudinidae of the order Testudines.
Tortoises
Crocodiles or true crocodiles are large semiaquatic reptiles that live throughout the tropics in Africa, Asia, the Americas and Australia.
Crocodiles
An alligator is a crocodilian in the genus Alligator of the family Alligatoridae.
Alligators
Snakes are elongated, limbless, carnivorous reptiles of the suborder Serpentes.
Snakes
Lizards are a widespread group of squamate reptiles.
Lizards
Tuatara are reptiles endemic to New Zealand. Although resembling most lizards, they are part of a distinct lineage, the order Rhynchocephalia.
Tuataras
