| 1. | Mesoglea is present in between ectoderm and endoderm in Obelia. |
| 2. | Asterias exhibits radial symmetry as an adult |
| 3. | Fasciola is a pseudocoelomate animal |
| 4. | Taenia is a triploblastic animal |
| 1. | having two germ layers instead of three |
| 2. | lacking a coelom |
| 3. | showing bioluminescence |
| 4. | having a complete digestive system |