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Animals Quiz: All About Crabs!: 10 Questions | Invertebrates

Hello, please enjoy my first attempt at making a quiz. Should be fun with a dash of humor. Enjoy!

A multiple-choice quiz by boundlessearth. Estimated time: 4 mins.

Author
boundlessearth

Time
4 mins

Type
Multiple Choice

Quiz #
369,486

Updated
Dec 03 21

# Qns
10

Difficulty
Tough

Avg Score
6 / 10

Plays
349

Last 3 plays: Guest 49 (3/10), Guest 50 (3/10), Guest 148 (5/10).

One at a Time - Single Page - Timed Game

Question 1 of 10

1. What crab lives on hydro thermal vents at a depth of up to 7,200 feet? Hint

Soft shell crab

Blue crab

Yeti crab

Alaskan king crab

NEXT>

Question 2 of 10

2. Which of these would you most likely use for bait to catch crabs? Hint

Chicken

Bacon

Hamburger

Nachos

NEXT>

Question 3 of 10

3. What is the largest crab on earth? Hint

Snow crab

Alaskan king crab

Brown crab

Japanese spider crab

NEXT>

Question 4 of 10

4. What is the largest land living arthropod in the world? Hint

Jumbo shrimp

Trilobites

Coconut crab

Scorpions

NEXT>

Question 5 of 10

5. What is the primary material that composes the exoskeletons of a crab? Hint

Calcium carbonate

Astaxanthin

Silica

Bone

NEXT>

Question 6 of 10

6. Hermit crabs belong to the superfamily Paguroidea. Most carry their gastropod shell around with them. Roughly how many species are known? Hint

1100

500

100

10,000

NEXT>

Question 7 of 10

7. What is another name for the 'langostino' lobster? Hint

Rock prawn

Maine lobster

Squat lobster

Crawdad

NEXT>

Question 8 of 10

8. What antioxidant is responsible for the red coloring of crabs and lobster? Hint

Red #5

Vitamin A

Beta carotene

Astaxanthin

NEXT>

Question 9 of 10

9. What crab is less than a half inch wide? Hint

Soft shell crab

Squat crab

Porcelain crab

Pea crab

NEXT>

Question 10 of 10

10. What is the name for a group of crabs? Hint

Flock

Murder

Herd

Cast

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Most Recent Scores

Apr 19 2024 : Guest 49: 3/10
Apr 12 2024 : Guest 50: 3/10
Apr 11 2024 : Guest 148: 5/10
Apr 04 2024 : Guest 172: 9/10
Apr 03 2024 : Guest 173: 6/10
Feb 26 2024 : Guest 174: 2/10
Feb 20 2024 : Guest 174: 3/10

Score Distribution

Quiz Answer Key and Fun Facts

1. What crab lives on hydro thermal vents at a depth of up to 7,200 feet?

Answer: Yeti crab

Thought to be blind, it lacks pigment and has hairy pincers.

2. Which of these would you most likely use for bait to catch crabs?

Answer: Chicken

Common practice growing up along the Gulf shore is to buy chicken thighs, tie them to some string or rope and toss a few feet into the water, pull up slowly and net you dinner!

3. What is the largest crab on earth?

Answer: Japanese spider crab

Weighing up to 42 pounds, this is one big crab!

4. What is the largest land living arthropod in the world?

Answer: Coconut crab

They use "branchiostegal lungs" instead of vestigial gills.

5. What is the primary material that composes the exoskeletons of a crab?

Answer: Calcium carbonate

It is one of the half dozen or so cell salts that also compose the human bones. It is used in homeopathy as a base for the formulas which have been popular since the turn of the last century.

6. Hermit crabs belong to the superfamily Paguroidea. Most carry their gastropod shell around with them. Roughly how many species are known?

Answer: 1100

Most species have spiral shaped abdomens.

7. What is another name for the 'langostino' lobster?

Answer: Squat lobster

There are about 900 known species known.

8. What antioxidant is responsible for the red coloring of crabs and lobster?

Answer: Astaxanthin

Much more powerful than other carotenes, astaxanthin in commonly marketed in stores and featured on shows like "Dr. Oz".

9. What crab is less than a half inch wide?

Answer: Pea crab

Crabs come in all sizes. The spider crab, compared to this little guy, reaches twelve feet long from claw to claw.

10. What is the name for a group of crabs?

Answer: Cast

Some crabs go it alone but other work together as a collective or cast.

Source: Author boundlessearth

This quiz was reviewed by FunTrivia editor guitargoddess before going online.
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