Category : Animal

Crab Quiz: How Much You Know About Crabs?

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Questions & Options


1. In which phylum do they fall?

172422 Arthopoda
172423 Sponge
172424 Mollusca
172425 Annelid

2. In which subphylum do they fall?

172426 Chelicerata
172427 Hexapoda
172428 Myriapoda
172429 Crustacea

3. How many species do freshwater crabs have?

172434 800
172435 850
172436 900
172437 950

4. Crabs are which type of animals?

172438 Carnivore
172439 Herbivore
172440 Omnivore
172441 None of the above

5. Which of these is crab's primary food?

172442 Fungi
172443 Molluscs
172444 Worms
172445 Algae

6. How many tonnes of crabs are consumed annually?

172450 1 million
172451 1.5 million
172452 2 million
172453 2.5 million

7. Which species makes one-fifth of the total?

172454 Portunus trituberculatus
172455 Portunus pelagicus
172456 Chionoecetes
172457 Callinectes sapidus

8. How many legs do Crabs belong to decapods have?

172462 6
172463 7
172464 8
172465 10

9. What is the scientific name of King crab?

172466 Chionoecetes opilio
172467 Callinectes sapidus
172468 Lithodidae
172469 None of the above

10. Crabs are?

172470 Amphibian
172471 Invertebrate
172472 Vertebrate
172473 None of the above

11. What is the average lifespan of a crab?

172478 1-2 yrs
172479 2-3 yrs
172480 3-4 yrs
172481 4-5 yrs

12. Which is the biggest crab?

172482 Hermit crab
172483 Blue crab
172484 Japanese spider crab
172485 King crab
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