Animal Origins
Porifera – the sponges porus (pore) + fera (bearing) Abundant marine grp w some fresh water (f.w.) species. Can range in size fr. small crusts or growths.
ANIMAL KINGDOM Mrs. Martin. Kingdom Animalia – Complex, multi-cellular, eukaryotic heterotrophic organisms Most complex of all kingdoms Multicellular.
Architectural Pattern of an Animal Chapter 9. The Appearance of Major Body Plans The Cambrian explosion marks the earliest fossil appearance of all major.
Animal Systems
