The skeltons of sharks and agnathans are made up of this tough, flexible material.
What is cartilage
100
Swim Bladder
What is an organ found in bony fishes that allows fish to control their depth in water?
100
Type of shark that has stripes on its back
What is the tiger shark
100
Ectothermic
What is the inability for a fish to control its internal temperature
100
These are thin bony plates formed from the skin.
What are scales?
200
Eels move in what pattern when they swim?
What is an S pattern
200
An organ in fish that exchanges gas.
What are gills?
200
Type of shark that can live in fresh water.
What is the bull shark
200
The largest group of fish.
What are ray-finned fish.
200
The name of the two gases mostly found in the swim bladder
What are oxygen and nitrogen
300
What happens to the skin of a hagfish when it is touched?
The skin produces a tremendous amount of mucus.
300
The number of chambers in a fish's heart
What is two chambers?
300
This characteristic in sharks makes in virtually impossible for a animal to escape a sharks bite.
What are teeth that are pointed backwards.
300
These are used to determine the age of a fish.
What are scales.
300
Name 3 of the five characteristics that all vertabrates have.
What are bilaterally symmetrical, coelomate animals that have endoskeleton, closed circulatory system, nerves system with complex brain and sense, efficient respiratory system.
400
Type of Chondrichtye fish that may have sharp spines that contain poison on the long tail.
What are rays.
400
A line of fluid-filled canals running along the sides of the fish. They detect movement and vibrations in the water.
What is the lateral line system?
400
The number of rows of teeth a sharks can have
What are 6 to 20 rows
400
Early jawless fishes that were the only vertebrates on Earth for 50 million years.
What are ostracoderms
400
Name the three classes of fish.
What are Agnatha, Chondrichthyes, and Ostichthyes.
500
The three subclasses of boney fish
What are lunged-fish, lobe-finned fish, ray-finned fish.
500
The process in which most bony fish use to reproduce in which females lay eggs, and then the males release sperm over the unfertilized eggs.
What is spawning?
500
Sharks can replace up to how many teeth in their life time.