Sharks vs. Bony Fish

Sharks PURPOSELY attack humans

• true
• false

What is the special electroreceptor organs near the shark's nose called?

• Ampullae of Lorenzini

• electro fields

• placoid scales

• nose hairs

What is the largest shark species?

• Basking shark

• Dogfish shark

• Whale shark

• Greenland shark

How many teeth can a shark go through in their lifetime?

• 50,000

• 10,000

• 750

• 30,000

Sharks belong to a group of fish called Chondrichthyes.

• True
• False

What are the skeletons of sharks and rays made of?

• Chitin
• Calcium carbonate
• Cartilage
• Coldness

hole behind the eye

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

The tail fin of a shark is called the:

• Pectoral fin

• Dorsal fin

• Caudal fin

• Pelvic fin

The swim bladder of a fish is a sac filled with:

• Oil
• Gas
• Lactic acid
• Seminal fluid

The flap of tissue covering a fish's gills:

• Operculum
• Caudal fin
• Dorsal fin
• Lateral line