
| Characteristic Larva | Planula |
| Unique feature | Cnidocytes |
| Tissue layers | Diploblastic |
| Developmental pattern | n/a |
| Gut | Incomplete |
| Coelom | n/a |

Clue: I start out “bi” and grow up totally “rad!”
Professor St. John's Instructional Materials
Sonoma State University

| Characteristic Larva | Planula |
| Unique feature | Cnidocytes |
| Tissue layers | Diploblastic |
| Developmental pattern | n/a |
| Gut | Incomplete |
| Coelom | n/a |

Clue: I start out “bi” and grow up totally “rad!”