Cold blooded vertebrates Flashcards
(24 cards)
An animal that has a backbone
Vertebrate
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
Hagfish and Lampreys
Examples of jawless fishes:
Skates, stingray, and hammerhead
Examples of cartilaginous fishes
Masked butterfly fish and pikes
Examples of bony fishes:
A gas-filled sac that is used to control buoyancy; also known as 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
A type of egg that is surrounded by a membrane, the amnion, and that in reptiles, birds, and egg-laying mammals contains large amount of yolk and is surrounded by a shell
Amniotic egg
A type of amphibian
Toads
tailless amphibians with a short squat body
Frogs
Amphibians that live in tropical weather. They look like earthworms or snakes
Caecilians
Usually live under logs and stones in the woods. They have a similar body to their ancestors, caecilians
Salamanders
A reptile with a hard shell to protect them from their prey. They also spend most of their time in water
Turtles
They live on land and their shell is what makes them slow
Tortises
Their eyes and nostrils are on the top of their flat head. They are also meat eaters
Crocodiles
Their eyes and nostrils are on the top of their flat head. They are also meat eaters
Alligators
Today’s most common reptiles are snakes and lizards. Snakes are carnivores. They have a special organs in the mouth that help them smell prey.
Snakes
Most lizards eat insects and worms but some eat plants. They have a loosely connected lower jaw, but do not swallow large prey whole
Lizards
Live on only a few islands off the coast of New Zealand . They look very similar to lizards and can grow to be about 60 cm long
Tuataras