"What characteristic is responsible for the branching off of sponges from the other animals?", "loose aggregate cells (no true tissues)" "What level of organization do they demonstrate?", "cellular-level" "What does the word "Porifera" mean?", ""pore-bearers"" "What is the name of the flagellated cells seen in sponges?", "choanocytes" "What characteristics are used to divide this phylum into classes?", "canal systems & skeletal structures" "When did they show up in the fossil record? What time does the molecular clock information suggest?", "Cambrian period Precambrian" "Where are they distributed? Where do they live?", "worldwide ocean" "Tissue layers for the phylum: Porifera?", "no true tissues" "What type of digestion do they have?", "Intracellular" "Type of Asexual Reproduction", "Budding"
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