• for: example, example - MET and FET insufficient for MST

• example: MET and FET insufficient for MST

• paraphrase

  • Eukaryotic single-celled organisms appear in the fossil record by approx. 1.6 BYA (Knoll et al., 2006).
  • Yet for a “boring billion” years of evolutionary history, they remain minor components in bacterial-dominated ecosystems
    • before explosively radiating as large, multicellular species in
      • an Ediacaran and
      • Cambrian MST.
  • Eukaryotes are obviously essential for this MST, as all
    • animals,
    • plants and
    • fungi

  • are eukaryotes.

  • However, the initial appearance of eukaryotic cells seems insufficient for a MST

Short for nicotinamide adenine dinucleotide, is a pyridine nucleotide which acts as an oxidative cofactor inside of eukaryotic cells.