Marine Science- Crustaceans

What type of circulatory system do crustaceans have?

• Open

• Closed

• None

Lobsters often have two different size claws to:

• Eat, breathe

• Pinch, crush

• Sense, move

• Crush, breathe

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

A very important crustacean that filter-feeding whales consume:

• Copepod

• Barnacle

• Krill

• Hermit crab

Barnacles use their ___________ to help them get food.

• Cilia

• Cirri

• Claws

• Carapace

Crustaceans with 10 legs:

• Copepods

• Decapods

• Arthropods

• Maxilipods

Which of the following is not a decapod?

• Crab

• Lobster

• Shrimp

• Barnacle

Why do hermit crabs live in snail shells?

• Lack exoskeleton

• Abdomen lacks exoskeleton

• Can't make their own shells

How do crustaceans reproduce?

• Internal fert, external dev

• Internal fert, internal dev

• External fert, external dev

• External fert, internal dev