Characteristics
Marine Crustaceans
Freshwater Crustaceans
Anatomy of a Crayfish
Interesting Facts
100

What are two pairs of sensory appendages that all crustaceans possess?

antennae

100

Which marine crustacean is known for having a blue coloration due to a genetic mutation?

Blue lobster

100

What is the common name for Daphnia?

water fleas

100

What structure on a crayfish is used for protection and covers the cephalothorax?

carapace

100

What is the rare color mutation found in lobsters?

blue

200

 How many pairs of legs do crustaceans typically have?

five or more pairs

200

What is the largest known crab species?

Japanese Spider Crab

200

 Which freshwater crustaceans can remain dormant for up to 20 years?

triops

200

How many pairs of walking legs do crayfish have?

four pairs

200

Which crustacean can open coconuts with its claws?

coconut crab

300

What type of body arrangement do crustaceans have?

Cephalothorax and abdomen or head and abdomen

300

Which marine crustaceans can be found attached to boats and piers and filter plankton?

barnacles

300

Name a freshwater crustacean that reproduces by parthenogenesis.

 Daphnia

300

What is the function of the chelipeds in crayfish?

capturing food and protection

300

What is the largest terrestrial arthropod?

coconut crab

400

What is a unique feature of crustaceans that allows them to breathe underwater?

Gills

400

 What crustaceans make up most of the marine plankton?

 copepods

400

What are the main food sources for Daphnia?

 algae, bacteria, and small crustaceans

400

What do the swimmerets help with in crayfish?

swimming, gas exchange, and protecting eggs/young

400

How do barnacles attach themselves to surfaces?

by living in a limestone case



500

 Name a terrestrial crustacean.

Isopod

500

What is the scientific name of the soldier crab?

Mictyris longicarpus

500

What is a common characteristic of crayfish's respiratory system?

Gills attached to walking legs

500

What organ in crayfish helps with balancing?

statocysts

500

What is the significance of the green glands in crayfish?

They filter wastes from blood and help with salt balance

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