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#anaerobic

4 public questions tagged with this topic.

ORIGIN OF LIFE

First living beings were anaerobic because:

All of the above reflects key principle in quiz on section b pyqs- origin of life, where evolutionary mechanisms shape genetic variation and adaptation. In this context, All of the above aligns with experimental and theoretical evidence from population genetics, behavioral ecology and molecular phylogeny. Textbooks like Campbell Biology, Futuyma Evolution and Hartl Principles illustrate supporting data. Understanding why All of the above fits helps integrate natural selection, drift and species concepts essential for NEET, CSIR-NET and GATE examinations. This concept integrates genetics, ecolo

Ref: Miller & Lazcano, J Mol Evol, Prebiotic Chemistry and RNA World.

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Biological Classification

Which of the following organisms are characterized as the smallest living cells known, completely lacking a cell wall, a

Mycoplasmas are exceptionally unique microorganisms within Kingdom Monera. According to NCERT Class 11 Biological Classification, they completely lack a rigid cell wall, which makes them highly pleomorphic. More importantly, they are definitively recognized as the smallest living cells discovered so far. Furthermore, they can survive in entirely anaerobic environments (without oxygen) and many species are significant pathogens causing diseases in both animals and plants.

Ref: NCERT Class 11 Biology > Chapter 2: Biological Classification > 2.1 Kingdom Monera

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