Marine Fishes

Fish that spend their lives in the ocean and migrate to fresh water to breed are

• Anadromous

• Catadromous

• Viviparous

• Haline

The skeletons of sharks is made of...

• Bone
• Cartilage

The tail fin of a fish is also known as the __________ fin.

• Pectoral

• Pelvic

• Dorsal

• Caudal

What is the name of the internal structure that controls a bony fish's depth in the water?

• Liver

• Air Pocket

• Lung Bladder

• Swim Bladder

What kind of scales does a shark have?

• Placoid
• Ganoid
• Ctenoid
• Cycloid

Lampreys and hagfish lack

• teeth

• heads

• mouths

• jaws

This is the organ where gas exchange occurs in fish.

• Gills

• Lungs

• Heart

• Operculum

What does the fish class name "Agnatha" mean?

• Jawless

• Cartilage fish

• Bony Fish

• Toothy

Which of the following fish would NOT belong to Class Chondrichthyes?

• Shark

• Hagfish

• Skate

• Ray

Fish are...

• Vertebrates
• Invertebrates