Bony Fish and Sharks

A commercial fishing method that uses hundreds, or even thousands, of baited hooks hanging from a single line is also called:

• Purse-seine Fishing

• Longline Fishing

• Pole and Reel Fishing

• Bottom Trawling

An industrial fishing method that drags large, heavy nets across the seafloor stirs up huge, billowing plumes of sediment on shallow seafloors that can be seen from space.

• Purse-seine Fishing

• Longline Fishing

• Pole and Reel Fishing

• Bottom Trawling

Roughly how many humans are killed by sharks each year?

• 4,500

• 67

• 5

• None

In the documentary "Sharkwater" Rob Stewart comes across illegally harvested shark fins. These fins are used in mainly China to make:

• Shark fin quesadillas

• Shark fin soup

• Shark fin sushi

• Shark fin steaks

From the documentary Sharkwater, Rob Stewart said" I wanted to make a film that shows sharks the way they really are, as beautiful and magnificent creatures that don’t want to hurt humans, and to show how our fear has blinded us to the fact that their populations have been reduced by ______ per cent over the last 50 years.”

• 54

• 90

• 15

• 40

According to current science, sharks are:

• over 400 million years old

• 1 billion years old

• 2 million years old

• 100 million years old

Which of these is not a feature of all bony fishes?

• gills

• backbone

• paired fins

• smooth skin

A system of sense organs found in aquatic vertebrates, used to detect movement, vibration, and pressure gradients in the surrounding water:

• lateral line

• paired fins

• jawless fish

• primitive notochord

Fish are part of Phylum _____, just like humans.

• Chordata

• Echinodermata

• Arthropoda

• Holothuridae

Sharks have special scales called:

• denticles

• silver

• fish

• pycnogonids