Lesson 7 Science Sharks ands Rays

What does Chondrichthyes mean?

• bony fish

• cartilaginous fish

• fast fish

• rib fish

Tags

NGSS.MS-LS4-2

Instead of scales sharks have

• denticles

• tentacles

• fins

• gills

Tags

NGSS.MS-LS4-2

The breathing holes that sharks and rays use are called

• spiracles

• denticles

• blow hole

• nares

If a shark's tooth is 2 inches long, how big is that shark?

• 40ft

• 30ft

• 10ft

• 20ft

What do the ampullae of Lorenzi do on a shark?

• help the shark see

• help the shark hear

• sense electricity

• sense danger

What does the word Agnatha mean?

• with jaw

• without jaw

• with teeth

• without teeth

What does a shark use 2/3 of its brain for?

• smelling

• hearing

• touching

• tasting