Crustaceans

How many legs do crustaceans have?

• 10

• 4

• 7

• 6

How do crustaceans breathe in the water?

• by lungs

• by gills

• by pincers

• by armored shell

What is NOT a characteristic of a crustacean?

• exoskeleton

• soft shell

• jointed legs

• invertebrate

Which of the following is a crustacean?

• Wood louse (lice)

• Spider

• Ant

• Shark

The posterior end of the crayfish is called the ___

• cephalothorax

• abdomen

The process of re-growing lost body parts such as pincers and walking legs.

• hibernation

• regeneration

• molting

• respiration

The best classification of this animal is __________________.

• crustacean

• arthropod

• mollusk

• invertebrate

All arthropods have an outside suit of armor called a(n) __________________.

• indoskeleton

• exoskeleton

• vertebrate

• invertebrate

All arthropods have ______________ symmetry.

• radial

• bilateral

• asymmetric (no symmetry)

What is the primary habitat of most crustaceans?

• Freshwater

• Desert

• Marine

• Forest