cold-blooded vertebrate flashcards
An animal that has a backbone.
vertebrates
An animal that can use body heat from chemical reactions in the bod’s cells to maintain a constant bod y temperature.
Endotherm
An organism that needs sources of heat outside itself.
Ectoterm
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
- hag fish 2. lampreys.
Jaw less fishes
- Sharks 2. Skates 3. and Rays
Cartilaginous fishes
- Lungfish 2. Masked butterfly fish 3. Pikes
Bony fishes
A gas-filled sac that is used to control buoyancy; 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 do not have legs and unlike any other amphibians, some Caecilians have bony scales in their skin.
Caecilians
Salamanders are the most like prehistoric amphibians in overall form and do not develop as tadpoles.
Salamanders
They are found in deserts and rain forests and are highly adapted for life on land.
Frogs
They are also found in deserts and rain forests and are highly adapted for life on land.
Toads
A type of egg that is surrounded by a membrane, the amnion, and that in reptiles, birds, and egg-laying mammals contains a large amount of yolk and is surrounded by a shell.
Amniotic egg
A slow-moving reptile, enclosed in a scaly or leathery domed shell into which it can retract its head and thick legs.
Turtles
A turtle, typically a herbivorous one that lives on land.
Tortoises
A large predatory semi aquatic reptile with long jaws, long tail, short legs, and a horny textured skin, using submersion and stealth to approach prey unseen. The crocodile has been extensively hunted for its valuable skin.
Crocodiles
A large semi aquatic reptile similar to a crocodile but with a broader and shorter head, native to the Americas and China.
Alligators
A long limbless reptile which has no eyelids, a short tail, and jaws that are capable of considerable extension. Some snakes have a venomous bite.
Snakes
A reptile that typically has a long body and tail, four legs, movable eyelids, and a rough, scaly, or spiny skin.
Lizards
A nocturnal burrowing lizard-like reptile with a crest of soft spines along its back, now confined to some small islands off New Zealand.
Tuataras
