Jawless Fish
What are two types of jawless fish?
hagfish and lampreys
What were the 3 types of cartilaginous fish mentioned?
Sharks, skates and rays
How many heart chambers do bony fish have?
2
What is the name of the class for jawless fish?
class agnatha
What are the two advantages that cartilaginous fish have over jawless fish?
biting jaws and paired fins (have enhanced stability and menuality)
What help bony fish detect movement in the water around them?
lateral line system
how do hagfish eat their prey?
they bore a hole into the soft tissue and eat the nutrients from the inside
What to male sharks have that specializations of their pelvic fins?
claspers
What does a lateral line system do?
helps the fish sense its environment and detect movement in the water around them
How many species of sharks are there?
368
How many species of sharks are there?
368
Describe the surface of their bodies.
Covered in flat, flexible scales.