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North American Mollusks Trivia Quiz

This quiz is about mollusks or sea shells.

A multiple-choice quiz by Morrigan716. Estimated time: 3 mins.

Author
Morrigan716

Time
3 mins

Type
Multiple Choice

Quiz #
54,220

Updated
Dec 03 21

# Qns
10

Difficulty
Average

Avg Score
6 / 10

Plays
1223

One at a Time - Single Page - Timed Game

Question 1 of 10

1. Which of these large mollusks is often used for jewelry, as well as food? Hint

Nerite

Keyhole Limpet

Abalone

Turban Shell

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Question 2 of 10

2. Which of these rounded snails is often found on rocks, tide pools, mangrove roots, and muddy places, such as estuaries? Hint

Wentletraps

Turret Shells

Ceriths

Periwinkles

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Question 3 of 10

3. Of the approximately 200 different species of cowries in the world, only five of them are found in North America.

True

False

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Question 4 of 10

4. Conchs are aggressive by nature.

True

False

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Question 5 of 10

5. Which of the following shells can be found in fresh water? Hint

Auger Shells

Abalones

Mussels

Horse Conchs

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Question 6 of 10

6. Which of theses bivalves are also referred to as "razor clams"? Hint

Lucines

Jackknife clams

Donax clams

Ark shells

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Question 7 of 10

7. Scallops have a single adductor muscle.

True

False

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Question 8 of 10

8. The surf clam is the largest bivalve found in the Western North Atlantic.

True

False

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Question 9 of 10

9. Which of these bivalves are also known as heart clams? Hint

Carditas

Quahog

Sanquin Clams

Cockles

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Question 10 of 10

10. Octopuses, squids, and slugs are mollusks.

True

False

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Quiz Answer Key and Fun Facts

1. Which of these large mollusks is often used for jewelry, as well as food?

Answer: Abalone

The round shell of the abalone resembles a shield and is believed by some to have protective qualities. They can also create pearls, which are extremely rare and considered lucky to find.

The red abalone is eaten as a delicacy in several countries, and there are several abalone farms in California.

2. Which of these rounded snails is often found on rocks, tide pools, mangrove roots, and muddy places, such as estuaries?

Answer: Periwinkles

Some periwinkles live on the edge of the water and others avoid predators by living entirely outside of the water. They are not native to North America but were introduced from Western Europe in the 1800s.

3. Of the approximately 200 different species of cowries in the world, only five of them are found in North America.

Answer: True

Cowries are popular among collectors and are also sometimes used as jewelry, ornaments, or charms.

4. Conchs are aggressive by nature.

Answer: False

They are often referred to as "fighting conchs", but not because of aggression. They are active and have a strong ability to escape predators.

5. Which of the following shells can be found in fresh water?

Answer: Mussels

Most freshwater mussels are found in rivers and streams, but there are a few species that live in lakes.

6. Which of theses bivalves are also referred to as "razor clams"?

Answer: Jackknife clams

Jackknife clams are difficult to catch by human diggers because of a small jet of water that squirts when the clam starts to dig. They are considered a delicacy, but locals in coastal Massachusetts try to collect them to make clam strips.

7. Scallops have a single adductor muscle.

Answer: True

Most bivalves have two adductor muscles. Scallops are popular among both shell collectors and foodies.

8. The surf clam is the largest bivalve found in the Western North Atlantic.

Answer: True

They can grow to be up to 8.9 inches and can live up to 35 years.

9. Which of these bivalves are also known as heart clams?

Answer: Cockles

Most species of cockles live below the tide line in sandy or muddy areas.

10. Octopuses, squids, and slugs are mollusks.

Answer: True

Mollusks are invertebrates with a soft, unsegmented body, usually but not always, surrounded by a shell.

Source: Author Morrigan716

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