CRUSTACEANS

How can you determine the sex of a crab?

• Size of its claws

• Size of its antennae

• Shape of its apron

• Shape of its exoskeleton

What does a crustacean do to grow larger?

• Attach itself to substrates

• Reproduce

• Molt

• Use jointed appendages

All crustaceans:

• have stinging tentacles

• are soft-bodied

• have jointed appendages

• are bioluminescent

All crustaceans:

• Have an exoskeleton

• Reproduce internally

• Have an internal skeleton

Which of the following is considered "a living fossil"?

• Copepods

• Barnacles

• Hermit crabs

• Horseshoe crabs

Crustaceans with 10 legs:

• Copepods

• Decapods

• Arthropods

• Maxilipods

Appendages on crabs that serve as feelers sensitive to touch and taste

• chelipeds
• mandibles
• antennae
• swimmerets

legs on the front of crabs that have pincers for capturing food and defense

• chelipeds

• swimmerets

• walking legs

The body of the crabs is covered by_____

• an exoskeleton

• scales

• skin

• fur

Blue crabs are decopods meaning that they have ___________ appendages

• 6
• 8
• 10
• 12