Shark Dissection

Front

What detects scents and leads to the nasal sac within the snout of a shark?

Back

Nostril

Front

What are the bioreceptors called that detect weak electrical signals of living organisms in sharks?

Back

Ampullae of Lorenzini

Front

When did sharks first appear in the fossil record?

Back

400 million years ago

Front

Do sharks have a swim bladder?

Back

No, sharks have no swim bladder.

Front

What is the function of the lateral line in sharks?

Back

The lateral line detects water currents, pressure changes, and movements in the water.

Front

What is the primary function of gills in sharks?

Back

Gills are used for respiration, allowing sharks to extract oxygen from water.

Front

What type of skeleton do sharks possess?

Back

Sharks have a cartilaginous skeleton, made of cartilage instead of bone.

Front

What is the role of the rostrum in sharks?

Back

The rostrum helps in sensing the environment and is the snout of the shark.

Front

How do sharks maintain buoyancy without a swim bladder?

Back

Sharks use their large livers filled with oil to help maintain buoyancy.

Front

What is the significance of the ampullae of Lorenzini in shark hunting?

Back

They allow sharks to detect the electrical fields produced by prey.