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The first organisms were
[1992]
- a)Chemoautotrophs
- b)Chemoheterotrophs
- c)Autotrophs
- d)Eucaryotes
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
The first organisms were[1992]a)Chemoautotrophsb)Chemoheterotrophsc)Au...
Chemoheterotrophs were first organisms. They were prokaryotic like bacteria, anaerobes, as molecular oxygen was absent. They obtained energy by fermentation of some of the organic molecules present in the broth. Thus they absorbed organic molecules from outside for body building and energy.
• Chemoautotrophs - Organisms that are capable to synthesize organic molecules from inorganic molecules.
E.g., Nitrifying bacteria, sulphur reducing bacteria etc.
• Autotrophs are photosynthesizing plants /organisms.
• Chemoautotrophs - Organisms that are capable to synthesize organic molecules from inorganic molecules.
E.g., Nitrifying bacteria, sulphur reducing bacteria etc.
• Autotrophs are photosynthesizing plants /organisms.
Most Upvoted Answer
The first organisms were[1992]a)Chemoautotrophsb)Chemoheterotrophsc)Au...
Heterophs , becoz sbshe pehle yeh aaye phir jb inka liya food Kam hogya then Autotrophs aaye uska baad chemoautrophs phr eukaryotes
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Community Answer
The first organisms were[1992]a)Chemoautotrophsb)Chemoheterotrophsc)Au...
Chemoautotrops are the first organism in living world
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The first organisms were[1992]a)Chemoautotrophsb)Chemoheterotrophsc)Autotrophsd)EucaryotesCorrect answer is option 'B'. Can you explain this answer?
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