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!

The nine phyla the animal kingdom
: Porifera (poriferans), Cnidaria
(), Platyhelminthes
(flatworms), Nematoda (),
Annelida (annelids), Mollusca
(), Arthropoda (arthropods),
Echinodermata () and
Chordata (chordates).