Final Answer:
Extremophiles are archaea found in extreme environments such as hot springs, acidic lakes, and deep-sea hydrothermal vents. They have unique lipid backbones, which makes them more adaptable to these harsh environments.
Step-by-step explanation:
Extremophiles, specifically archaea, are microorganisms that thrive in extreme environments where most life forms would struggle to survive. These environments include hot springs, acidic lakes, and deep-sea hydrothermal vents. One key adaptation that sets extremophiles apart is their unique lipid backbones.
Unlike the more common phospholipid membranes found in other organisms, extremophiles have adapted by using distinctive lipids. These lipids contribute to the structural integrity of their cell membranes and play a crucial role in their ability to withstand extreme conditions. The unique lipid composition provides stability in high temperatures, acidity, or other challenging environmental factors, allowing extremophiles to thrive where other life forms may falter.