1 Phylum Porifera The Sponges. 2 3 I) Sponges A)Phylum Porifera 1) Means “pore-bearing” B)Simplest multicellular animals C)No true organs or tissues. - ppt download
Wounding response in Porifera (sponges) activates ancestral signaling cascades involved in animal healing, regeneration, and cancer | Scientific Reports