Invertebrates

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 (legs)

• are bioluminescent

Which of these is NOT a crustacean?

• Barnacle

• Copepod

• Hermit crab

• Coral

All crustaceans:

• Have an exoskeleton

• Have more than 10 legs

• Are sessile

• Have an internal skeleton/backbone

Why are barnacles considered crustaceans? (Two answers!!)

• Live in an exoskeleton

• Attach itself to substrates

• Have jointed appendages

• Filter feed

Why do crustaceans have to shed their exoskeletons?

• it wears out
• they don't shed
• it limits the size they can grow
• to go from water to land environments

Which of these is not a crustacean?

• 
• 
• 
• 

How do crustaceans breathe?

• With lungs

• With their gills

Which type of defense mechanism is shown here?

• Toxins/Poisons

• Using other organisms' body parts

• Camouflage

• Secreting mucus

Which part of the crab is shaded in here?

• Chela

• Pereopod

• Carapace

• Dactylus