Sharks

The structure labeled #5 is the

• dorsal fin.

• gill filament.

• operculum.

• lateral line.

What is a shark's adaptation to maintain neutral buoyancy?

• Fluid in the ears
•  Gas filled bladder
• Large oily liver
• Nictitating membrane

The scales on a shark are called

• Dermal Scales

• Dermal Spicules

• Dermal Denticles

• Dermal Dendrites

The shark in the picture has claspers. Is it a female or a male?

• Female

• Male

These are the ____ of the shark.

• Lateral lines

• Spiracles

• Gills

The two main groups of Jawless fish are:

• Trout and bass

• Eels and lampreys

• Lampreys and hagfish

• Skates and rays

hole behind the eye

• Spiracle:
  pumps water to gills
• Pit Organ:     
  for hearing and balance
• Ampulla of Lorenzini:
  Electrosense

What are the skeletons of sharks and rays made of?

• Chitin
• Calcium carbonate
• Cartilage
• Coldness

Tags

NGSS.MS-LS4-2

Sharks can detect even the smallest drip of blood

• True
• False

A series of tiny pores that lead to receptors that are sensitive to the mechanical movement of water and sudden changes of pressure.

• Lateral Line
• Ampullae of Lorenzini
• Nostrils
• Spiracles