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Methanogens are one of the highest-yield microbiology topics tested on the DAT and OAT. These unique microorganisms produce methane (CH₄) and belong exclusively to the domain Archaea, not Bacteria or Eukarya.
Test yourself with the question before looking at the solution on the second slide. Understanding why methanogens are classified as Archaea is an important Biology concept that appears repeatedly on the DAT and OAT.
📘 Join the Official DAT Destroyer Study Group on Facebook to connect with other DAT & OAT students and download Dr. Jim Romano's 2026 Biology Review PDF for FREE (available in the Files section):
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📖 Start your DAT & OAT preparation with our free official resources:
Start Your DAT and OAT Preparation for Free | Official Resources from Dr. Jim Romano
Test yourself with the question before looking at the solution on the second slide. Understanding why methanogens are classified as Archaea is an important Biology concept that appears repeatedly on the DAT and OAT.
📘 Join the Official DAT Destroyer Study Group on Facebook to connect with other DAT & OAT students and download Dr. Jim Romano's 2026 Biology Review PDF for FREE (available in the Files section):
www.facebook.com
📖 Start your DAT & OAT preparation with our free official resources:
Start Your DAT and OAT Preparation for Free | Official Resources from Dr. Jim Romano
