Most living organisms cannot survive at temperatures above $45\,^{\circ}C$. How are some microbes able to live in habitats with temperatures exceeding $100\,^{\circ}C$?

(N/A) Archaebacteria (specifically thermophiles) are ancient forms of bacteria found in extreme environments like hot water springs and deep-sea hydrothermal vents.
They are able to survive in high temperatures (which far exceed $100\,^{\circ}C$) because their cellular structures have adapted to such extreme conditions.
These organisms contain specialized thermo-resistant enzymes that maintain their structural integrity and catalytic activity,allowing them to carry out essential metabolic functions without being denatured at such high temperatures.