Slide 1Architectural Pattern of an Animal Chapter 9 Slide 2 The Appearance of Major Body Plans The Cambrian explosion marks the earliest fossil appearance of all major groups…
Slide 1 Phylum Porifera- Sponges Slide 2 Among the most ancient animals Mostly marine but some fresh water Porifera- literally means “pore bearer”, which…
Porifera Phylum Porifera- Sponges 1 Among the most ancient animals Mostly marine but some fresh water Porifera- literally means âpore bearerâ, which is appropriate because…