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#Question id: 4943


In what way were conditions on the early Earth of more than 3 billion years ago different from those on todayʹs Earth?

#SCPH28 | Zoology
  1. only early Earth had water vapor in its atmosphere.

  2. Only early Earth was intensely bombarded by large space debris.

  3. Only early Earth had an oxidizing atmosphere.

  4. Less ultraviolet radiation penetrated Earthʹs early atmosphere.


Answer:- Option(s): 2


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#Question id: 15914

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#Question id: 15914

#SCPH05 I Biotechnology

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#Question id: 15915

#SCPH05 I Biotechnology

Culture freshly prepared from isolated tissue is known as _____ 

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#SCPH05 I Biotechnology

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#Question id: 15916

#SCPH05 I Biotechnology

Recombination of different types of cells to form more defined tissue or organ is known as __________________ 

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#Question id: 15916

#SCPH05 I Biotechnology

Recombination of different types of cells to form more defined tissue or organ is known as __________________ 

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