.
Sessile benthic
Demersal
Vagrant benthic
Epifaunal
True
False
Triassic
Cambrian
Hadean
Ediacaran
Protozoans
Metazoans
Eukaryotic
Prokaryotic
Spongocoel and choanocytes
Choanocytes and spongocoel
Porocytes and ostia
Flagella and osculum
True
False
True
False
True
False
Spicules
Mesozoic
Mesoglea
Mesopotamia
True
False
Mollusca
Cnidaria
Animalia
Porifera
Calcarea
Demospongiae
Sclerospongiae
Hexactinellida
Calcarea
Hexactinellida
Demospongiae
Sclerospongiae
Sclerospongiae
Calcarea
Demospongiae
Hexactinellida