| Answer | Crossword Clue |
|---|---|
| CELL | Structural unit, in biology. |
| EGG | Reproductive unit in biology |
| GERMCELL | Basic unit in biology. |
| IBAR | Structural unit |
| HBEAM | Structural unit |
| CELL | Basic structural unit |
| IBEAM | Metal structural unit |
| IDIC | Of a structural unit. |
| IDANT | Hypothetical structural unit: Biol. |
| CELLWALL | Basic structural unit of a plant |
| BRIDGE | Structural unit built by Sea Bees. |
