Many bony fish reproduce by ________.
What is spawning?
Most fish are covered in ______.
What are scales?
Amphibians are ___________.
What is ectothermic?
Reptiles have _____ skin.
What is scaly?
Number of chambered hearts in most reptiles.
What is a three-chambered heart?
Four limbed amphibians.
What are tetrapods?
At the back of its head, a bony fish has a structure called an_________.
What is a operculum?
Most obvious feature of all amphibians.
What is thin, moist, highly permeable skin?
Turtles and crocodilians typically have a good sense of _____.
What is smell?
What are salt glands?
Bony fishes have a ________ that fills with gases.
What is a swim bladder?
Vertebrates form a subphylum in phylum____.
What is Chordata?
Amphibian larva are typically _______.
What is aquatic?
Vertebrates whose unborn young are surrounded by an amnion.
What are amniotes?
Certain venomous snakes that have heat-sending pits.
What are pit vipers?
Frogs that live in hot places ________ in the mud at the bottom of lakes.
What is estivate?
3 main classes of fish
What is cartilaginous, jawless, and bony fish?
3 orders that amphibians are divided into.
What are caecilians. frogs, and salamanders?
Organ of a squamate that samples the air.
What is the Jacobson's organ?
Method of camouflage of fish that has to do with light.
What is countershading?
Metabolic wastes are stored in the _________ of a egg.
What is allantois?
Second set of jaws in a fish.
What are pharyngeal jaws?
Position of amphibian mating.
What is amplexus?
4 orders that living reptiles are divided into.
What are turtles, lizards and snakes, crocodilians, and tuataras?
The pumping of air into frogs lungs.
What is buccal pumping?