4. What are the types of
digestion and of digestive
system of platyhelminthes?

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!
Flatworms have incomplete
systems and they extracellular
and intracellular
digestions.