Crab Quiz: What Do You Know About These Crustaceans?

Quiz Questions

What is the scientific name for the common crab?

• Cancer irroratus
• Brachyura
• Scylla serrata
• Portunus pelagicus

What is the average lifespan of a crab?

• 6-8 years
• 9-12 years
• 1-2 years
• 3-4 years

What is the largest species of crab?

• Japanese spider crab
• Dungeness crab
• Red king crab
• Coconut crab

What is the average size of a crab?

• 3-5 inches
• 9-12 inches
• 6-8 inches
• 1-2 inches

What is the habitat of most crabs?

• Freshwater rivers
• Deserts
• Tropical rainforests
• Saltwater oceans

What is the name of the crab's hard outer shell?

• Exoskeleton
• Mandible
• Endoskeleton
• Carapace

What is the purpose of the crab's claws?

• To help them climb
• To help them swim
• To catch and eat prey
• To help them dig

What is the name of the crab's small legs used for walking?

• Chelipeds
• Pincers
• Swimmerets
• Walking legs

What is the name of the crab's large legs used for swimming?

• Walking legs
• Chelipeds
• Pereiopods
• Pincers

What is the name of the crab's first pair of legs used for catching food?

• Chelipeds
• Pincers
• Walking legs
• Swimmerets

What is the name of the crab's fifth pair of legs used for cleaning?

• Pincers
• Swimmerets
• Chelipeds
• Maxillipeds

What is the name of the crab's sixth pair of legs used for reproduction?

• Pleopods
• Pincers
• Swimmerets
• Chelipeds

What is the name of the crab's seventh pair of legs used for holding eggs?

• Pincers
• Chelipeds
• Ovigerous legs
• Swimmerets

What is the name of the crab's eyes?

• Multi-lensed eyes
• Faceted eyes
• Simple eyes
• Compound eyes

What is the name of the crab's sense of smell?

• Taste buds
• Antennae
• Eyes
• Gills