Documents Chapter 9

Chapter 9 Chapter 9 Multicellular and Tissue Levels of Organization Evolutionary Perspective Porifera No tissues Division of labor among independent cells Independent origin…

Documents Chapter 9 Porifera and Cnidaria. Evolutionary Perspective Porifera – No tissues – Division of...

Chapter 9 Chapter 9 Porifera and Cnidaria Evolutionary Perspective Porifera No tissues Division of labor among independent cells Independent origin from common animal ancestor…