Retrieving "Extremophilic Niches" from the archives

Cross-reference notes under review

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1. Archaea

   Linked via "Extremophilic Niches"

   | Domain | Defining Membrane Linkage | RNA Polymerase Type | Regulatory Feature Prevalent | Typical Environment |
   | :--- | :--- | :--- | :--- | :--- |
   | Archaea | Ether-linked Isoprenoids | Eukaryotic Homolog | Chronotactic Locus | Extremophilic Niches |
   | Bacteria | Ester-linked Fatty Acids | Distinct Single Subunit | Operons (e.g., lac) | Ubiquitous |
   | Eukarya | Ester-linked Fatty Acids | Complex Multi-Subunit | Enhancer/Insulator Systems | Diverse |