How many years ago did fish first appear?

Cartilage is different from bone because

What is composed of bony plates and protects bony fish gills?

Fish that live in the open ocean have dark backs, silvery sides and a white belly; this is know as

An octopus does not have a spine. An animal without a spine is an invertebrate. Is an octopus a fish or not?

All fish use gills.

Most fish have what covering their bodies

What kind of fish / sea creature is it?

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

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

Lampreys and hagfish lack

Which of these is not a class of fish?

This is the organ where gas exchange occurs in fish.

In fish, what is the name of the fluid-filled canal that detects movement and vibrations in water?

Hagfish produce and excrete this substance to make themselves harder to catch.

What does the fish class name "Agnatha" mean?

Which fish class would a lamprey be classified in?

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

Lungs are to mammals as _____________ are to fish.

A shark's skeleton is made of...

The major respiratory organ of a fish is the

The structure labeled #5 is the

The structure labeled #9 is called the

The lateral line system enables a fish to

True or False.... A dolphin is a fish.

Sharks are fish

A hard, tooth like projection from the gill arch that prevents large particles of food & other materials from passing into the gill lamellae

Which fish is least related to the others?

A goldfish propels itself forward with its

The firm but flexible tissue inside a shark

The firm but flexible tissue inside a shark

What is the name of this fin?

Caudal fin that's built for speed

Part of the gills where gas exchange occurs

Which of the following is not a class of fish?

Describe the circulatory system of a fish.

Lamprey obtain food by acting as

Finger-like projections that aid in sperm transfer during the mating of sharks