Task: Text Categorization
Input (English): The amphiblastula forms after inversion of the stomoblastula in members of this phylum. A member of it is affected by red band syndrome and another is known as Venus's-flower-basket. Members of this only phylum in subkingdom Parazoa survive cold and dry conditions by forming gemmules. The osculum is found in members of it, which is divided into asconoid, syconoid, and leuconoid types. Organized at the cellular level, they have a mesohyl with skeletal elements called spicules. For 10 points, identify this "pore bearing" phylum, members of which have choanocytes and are also known as sponges.
Output (English): Science