For 10 points, name this prokaryotic domain whose name suggests that they are older than bacteria.
Some of these organisms contain methano-chondroitin bound to the S-layer. The cell membranes in these organisms have fatty acids bonded to L-glycerol by ether linkages, rather than by esters. The flagella of these organisms resemble Type IV pili instead of Type III secretory systems. Some of these organisms use Coenzyme M in a pathway that ultimately uses methane to drive chemiosmosis. Although the ribosomes of these organisms are separated into 30-S and 50-S subunits like those of bacteria, their rRNA sequences resemble those of eukaryotes. For 10 points, name this prokaryotic domain whose name suggests that they are older than bacteria.
Some of these organisms contain methano-chondroitin bound to the S-layer.
Archaea [or Archaebacteria]