IVS.H | Review Quiz Results |

IVS.H | REVIEW QUIZ Results

IVS.H | Review Quiz Results

You've finished the quiz, and answered correctly. Your score is .

Remember that you must pass with 80% or more to move on to the next section. You can review any questions you might have missed below before retaking the quiz. If you passed with 80% or more, you can go ahead and mark the page complete using the button at the bottom of the page, and keep going!

Great work - you've passed with at least 80% and can move on to the next lesson!

Sorry - you've scored lower than 80%. Have a look at the questions and correct answers below, and then give the quiz another try.

You know that marine invaders are dangerous to their non-native environments, but why is that? *

They aren't very pretty and discourage tourism

They don't taste very good, so they're a waste of time to local fishermen

They displace native species and damage the local marine environment

They're just rude, and nobody likes that

Incorrect! Oh no. Missed that one!
The correct answer is: They displace native species and damage the local marine environment.

CORRECT
Bingo - You nailed it!

What does the Veined Rapa Whelk do that is such a danger to the ecosystems it invades? *

It sheds its shell every six months and clogs up coral polyps

It emits a horrible sound that frightens away native species

It clogs intake pipes of local water supplies

It preys on bivalve mollusks that are important to local fisheries

Incorrect! Oh no. Missed that one!
The correct answer is: It preys on bivalve mollusks that are important to local fisheries

CORRECT
Bingo - You nailed it!

What is the most invasive species of all? *

Humans

Zebra Mussels

Jellyfish

Lionfish

Incorrect! Oh no. Missed that one!
The correct answer is: Humans

CORRECT
Bingo - You nailed it!

Where in the US were Asian Clams introduced? *

Los Angeles

San Francisco

Seattle

New York

Incorrect! Oh no. Missed that one!
The correct answer is: San Francisco

CORRECT
Bingo - You nailed it!

How did the Green Crab spread so far across the world? *

They were sold to exotic fish shops as pets

They were intentionally introduced to deal with Zebra Mussel populations

They were sold as fish bait and traveled in ballast tanks around the world

Their eggs are enjoyed as food and some were washed overboard during a storm in 1987

Incorrect! Oh no. Missed that one!
The correct answer is: They were sold as fish bait and traveled in ballast tanks around the world

CORRECT
Bingo - You nailed it!

If invasive species don’t belong in a given area, how are they able to spread so quickly and displace native species? *

They have an unfamiliar smell that scares off native species

They consume resources but have few predators

People bring them as pets

None of these

Incorrect! Oh no. Missed that one!
The correct answer is: They consume resources but have few predators.

CORRECT
Bingo - You nailed it!

The Sea Walnut is native to North and South America, but in 1982 it showed up somewhere it didn’t belong. Where was this? *

The Dead Sea

The Black Sea

The Arctic Ocean

The Red Sea

Incorrect! Oh no. Missed that one!
The correct answer is: The Black Sea.

CORRECT
Bingo - You nailed it!

What the favourite tasty meal of Green Crabs? *

Green Crabs

Worms and Mollusks

The dorsal fins of Bull Sharks

Atlantic Cod

Incorrect! Oh no. Missed that one!
The correct answer is: Worms and Mollusks.

CORRECT
Bingo - You nailed it!

Sea Walnuts are small and can't sting, so what is so bad about them? *

They feed on the Atlantic Cod essential to local fisheries

They look weird and that frightens off native fish

They consume zooplankton that native species normally feed on

They scare away native fish

Incorrect! Oh no. Missed that one!
The correct answer is: They consume zooplankton that native species normally feed on

CORRECT
Bingo - You nailed it!

It’s thought that only a handful of lionfish caused the massive population that now threatens the coast of the United States and Caribbean Sea. What do some scientists think caused this? *

Hurricane Ralph caused the gulf stream to change course and it carried the lionfish with it

Hurricane Andrew flooded a home with an aquarium full of lionfish that escaped to the sea in Miami

Hurricane Katrina caused a ship carrying lionfish to sink in the Gulf of Mexico

Hurricane Sandy blew down a pet store in New Jersey and lots of lionfish escaped to the sea

Incorrect! Oh no. Missed that one!
The correct answer is: Hurricane Andrew flooded a home with an aquarium full of lionfish that escaped to the sea in Miami.

CORRECT
Bingo - You nailed it!

Northern Pacific Seastars look innocent enough, but in reality they are imminently destructive to everything in their path. Where have they hitchhiked to recently? *

Chile

The Azores

Australia

Japan

Incorrect! Oh no. Missed that one!
The correct answer is: Australia

CORRECT
Bingo - You nailed it!

Why was the Asian Clam first introduced to North American waters? *

A prank that went horribly wrong

Their shells are valued as jewelry

As a food source

To displace the local scallop population

Incorrect! Oh no. Missed that one!
The correct answer is: As a food source.

CORRECT
Bingo - You nailed it!

Native to the India and Pacific oceans, how did Caulerpa Taxifolia, or “killer algae,” spread to the Mediterranean Sea? *

It was used as decoration in public and private aquariums and managed to escape

It was used as fertilizer near the seashore

It was thought to be prettier than local seaweed but ended up spreading too far, too fast

It was planted as a cheap food source

Incorrect! Oh no. Missed that one!
The correct answer is: It was used as decoration in public and private aquariums and managed to escape.

CORRECT
Bingo - You nailed it!

How much damage do shore crabs cause in the US annually? *

$22 million

$87 million

$150 million

$10 million

Incorrect! Oh no. Missed that one!
The correct answer is: $22 million.

CORRECT
Bingo - You nailed it!

Why is ballast water used? *

It improves stability

It provides a marine habitat

It has no purpose

It's a place for algae to grow

Incorrect! Oh no. Missed that one!
The correct answer is: It improves stability.

CORRECT
Bingo - You nailed it!

How did California take care of its Killer Algae problem? *

The sun dried it up

A giant device scooped it from the water

Toxic chemicals

Scientists introduced snails to eat the algae

Incorrect! Oh no. Missed that one!
The correct answer is: Toxic chemicals.

CORRECT
Bingo - You nailed it!

Where is the Green Crab originally from? *

The Philippines

China

Europe

Africa

Incorrect! Oh no. Missed that one!
The correct answer is: Europe

CORRECT
Bingo - You nailed it!

Where are Lionfish causing problems? *

The Caribbean

The Great Barrier Reef

Southern California

Hawaii

Incorrect! Oh no. Missed that one!
The correct answer is: The Caribbean.

CORRECT
Bingo - You nailed it!

What are Green Crabs used for? *

Decoration

Snacks

Fish bait

Pets

Incorrect! Oh no. Missed that one!
The correct answer is: Fish bait

CORRECT
Bingo - You nailed it!

Where have Northern Pacific Sea stars become a problem? *

Australia

Korea

Japan

The Caribbean

Incorrect! Oh no. Missed that one!
The correct answer is: Australia

CORRECT
Bingo - You nailed it!

Good try! Click the button below to return to the Lesson, review and try the quiz again.

Go Back to Lesson