What is true for Archaebacteria?

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(D) Archaebacteria are considered the oldest living organisms because they possess a unique cell wall structure that allows them to survive in some of

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Oldest living beings

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(D) Archaebacteria are considered the oldest living organisms because they possess a unique cell wall structure that allows them to survive in some of the most harsh habitats,such as extreme salty areas (halophiles),hot springs (thermoacidophiles),and marshy areas (methanogens).These organisms are believed to have evolved very early in the history of life on Earth,hence they are often referred to as 'living fossils' or the oldest living beings.

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