Vocab
These cover the bodies of fish and snakes.
Scales
When a snake moves in a straight line by alternately stretching and shortening body segments.
Rectilinear Movement
This type of fish has bones.
Bony fish
This type of reptile can be terrestrial, aquatic, burrowing, arboreal, or aerial.
Lizards
The year that the word "dinosaur" was first used.
1841
The way that fish reproduce.
Spawn
When a snake moves sideways.
Sidewinding Movement
This type of fish has no bones.
Cartilaginous fish
This type of reptile includes caimans, gavials, alligators, and crocodiles.
Crocodilians
This describes an animal whose body temperature is controlled by its environment.
Cold-blooded
The organ fish use to breathe.
Gill
The most common way a snake moves, by slithering forward along the same path.
Lateral Undulation
This organ helps fish control the depth that they are swimming at.
Swim bladder
This type of reptile is the only type with shells.
Turtles
This allows sharks to see in the dark.
Eye shine
The organ fish use to sense small vibrations and changes in pressure.
When a snake moves by alternately coiling and uncoiling its body.
Concertina Movement
The reason why sharks never stop swimming.
They don't have a swim bladder.
This type of reptile has no limbs.
Snakes
The organ that snakes use to smell.
Jacobson's organ
Molt
The two types of snake venom.
Neurotoxin and hemotoxin
The type of fish that have a flattened body.
Batoids
This least common type of reptile lives only on a few islands near New Zealand
Tuataras
The organ that some snakes use to detect small changes in temperature.
Pit organ