Question

What is true for archaebacteria ?
(a) All halophiles (b) All photosynthetic
(c) All fossils (d) Oldest living beings

Answer 1

Archaebacteria are the oldest living beings on earth is the true statement.

Option (D) is correct.

Explanation:

• The archaebacteria are the single-celled, primitive and prokaryotic organisms.
• These are the ancient and oldest living organisms.
• These were the first organism which evolved on the Earth.
• Over the years these organisms have evolved to survive in the extreme conditions.
• These extreme conditions are acidophiles, halophiles, thermophiles and methanogens, etc.  

Thus archaebacteria are the oldest living beings on earth is the true statement.

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Define prokaryotic cell  ?

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