Class Chondrichthyes

Front

What is a characteristic of Chondrichthyes?

Back

Cartilage skeleton.

Front

What are the Ampullae of Lorenzini?

Back

Specialized electroreceptors found in Chondrichthyes that detect electric fields in the water.

Front

How long can some sharks be pregnant?

Back

Some sharks can be pregnant for up to 2 years.

Front

How do scientists determine the age of a shark?

Back

By counting the rings on their vertebrae.

Front

What is the primary function of the stomach in Chondrichthyes?

Back

To digest food.

Front

What type of skeleton do Chondrichthyes have?

Back

Cartilaginous skeleton.

Front

Name a common example of a Chondrichthyes.

Back

Sharks and rays.

Front

What is the role of gills in Chondrichthyes?

Back

To extract oxygen from water.

Front

How do Chondrichthyes reproduce?

Back

They can reproduce through oviparity, viviparity, or ovoviviparity.

Front

What is the significance of the lateral line system in Chondrichthyes?

Back

It helps them detect movement and vibrations in the water.