- Simple Animals
- Wormlike Animals
- Porifera (Sponge) Phylum
- 3 Cell Types
- Epithelial cells
- Amoeboid cells
- Inner+Outer Body Surfaces
- Nutrients
- Reproductive Cells
- Skeleton
- Asymmetrical
- Asexually/Sexually
- Egg and Sperm
- Cnidaria (Two-Layered) Phylum
- Radially Symmetrical
- 2 Cell Layers
- Dipoblastic
- Inner Layer (Gastrodermal) Cells
- Outer Layer (Ectodermal) Cells
- Any Specified Organs/Organ Systems
- Nerve Net
- Muscle Cells
- Motile (Moving)
- Water Flow through Sponge
- Specified Layers
- Sessile (Not Moving)
- Nervous System
- Polyps
- Eggs and Sperm
- Budding
- Medusae
- Any Specified Organs
- Platyhelminthes (Flatworm) Phylum
- Fluid-Filled Coelom
- Few Specified Organs/Organ Systems
- Motile (Moving)
- Bilaterally Symmetrical
- 3 Main Cell Layers
- Asexually and Sexually
- Two Life Cycles
- Nervous System
- Gastrovascular Cavity
- Fluid-Filled Coelom
- Collar Cells
- Fluid-Filled Coelom
- Hermaphroditism
- Sexually
- Hermaphroditism
- Diffusion
- Flat Body Plan
- Budding
- Brain
- Nematoda (Roundworm) Phylum
- Catey McKay