| Answer | Crossword Clue |
|---|---|
| BIOTA | Region's life forms |
| ORNIS | Region's bird life. |
| FAUNAE | Animal life of various regions |
| FAUNAL | Of a given region's animal life |
| BIOTA | Life forms |
| ZOA | Life forms |
| BEINGS | Life forms |
| ORGANISMS | Life forms |
| BIOTA | Regional life forms |
| AMOEBAS | Simple life forms |
| EMBRYOS | Early life forms? |
| AMOEBAE | Low life forms |
| AMEBAE | Simple life forms. |
| AMEBAS | Simple life forms |
| EMBRYOS | Early life forms |
| AMOEBAE | Rudimentary forms of life. |
| PRIMEVAL | Like early life forms |
| BIOTA | Local life forms, collectively |
| ETS | Alien life forms, for short |
| CARBON | Base for life forms here |
| PRIMEVAL | Like the earliest life forms |
