Class of Fish
Class Chondrichthyes
External Features
Form and Function
Miscillaneous
100
Agnatha, Osteichthyes and Chondrichthyes
What are the three classes of fish?
100
The fish in this class have a cartilaginous skeleton instead of a bony one.
What is the class Chondrichthyes?
100
This fin is used for propulsion
What is the caudal fin?
100
Fish that have a superior mouth eat ___________ an often have a __________.
What are at the surface and a flat back?
100
Fish have this type of circulatory system?
What is a closed circulatory system?
200
This class of fish lack paired appendages and jaws
What is the class Agnatha?
200
These two types of species look very similar but there are some noticeable difference such as size and the way they give birth.
What are skates and rays?
200
This fin is used for stability
What is the dorsal fin?
200
Fish that are fast swimmers usually have this type of shape.
What is the torpedo shape?
200
The function of this on fish is to sense changing water currents and vibrations.
What is the lateral line?
300
These are two examples of species from the class Agnatha
What is the lamprey and hagfish?
300
This type of tail provides more thrust on top than on the bottom and helps keep sharks up in the water
What is a heterocercal tail?
300
This fin controls direction and movement.
What is the pectoral fin?
300
Fish with an inferior mouth are usually ___________ and use ________ for locating food.
What is bottom feeders and barbels?
300
This organ helps to regulate buoyancy in a bony fish.
What is the swim bladder?
400
These organisms are included in the class Chondrichthyes.
What are sharks and rays?
400
The Sand Tiger Shark is an ovoviparous animal is famous for this
What is embryonic cannibalism?
400
These type of scales have well developed sensory systems embedded in the scales and they reduce drag and friction.
What are placoid scales?
400
Fish with trubcated or rounded tails are these type of swimmers.
What is strong slow swimmers?
400
A specific type of egg laying when an animal lays eggs but then takes the eggs into a pouch or mouth to protect them till hatching.
What is brooding?
500
This class of fish has a skeleton made of bone, have an operculum and a swim bladder.
What is the class osteichthyes?
500
Mistaken identity, harrassment, and competition
What are the three reasons why sharks attack humans?
500
These scales are thin, light and flexible which allows for increased mobility and speed.
What are ctenoid scales?
500
Fish that live in open waters have this type of body and live in ________.
What is round body, compressed and groups?
500
This means that the animal hunts at dawn and duck.
What is crepuscular?
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