15. Do octopus and squids
have exoskeleton?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Octopus and squids do not
produce shell (some squid
can have an shell). One
cephalopod , the nautiluses,
produces external spiral shell.