Dogfish Dissection

Front

Sharks, including the dogfish shark from the dissection, are members of what vertebrate taxonomic class?

Back

Chondrichthyes (cartilaginous fish)

Front

Is this a male or a female dogfish shark?

Back

male

Front

The fin shown in the image is the tail fin of the dogfish shark. The technical term for the tail fin is the _______ fin.

Back

caudal

Front

What are shark skeletons made of?

Back

Cartilage

Front

What do bony fish have that sharks don't have?

Back

swim bladder

Front

What are the pore-like structures that detect electrical signals of prey or predators that cannot be found by sight or smell?

Back

Ampullae of Lorenzini

Front

What external structures are used to distinguish between a male and female dogfish shark?

Back

Claspers

Front

What is the function of the liver?

Back

Producing bile to aid in the digestion of fatty foods

Front

What is the function of the rectal gland?

Back

Collects and eliminates salt from the sharks body

Front

How many lobes does the liver have in the dogfish shark?

Back

3