Simple one-celled cyanobacteria-like organisms appeared on Earth:

  • A
    $5600 \text{ million}$ years ago
  • B
    $5000 \text{ million}$ years ago
  • C
    $4600 \text{ million}$ years ago
  • D
    $3.3 \text{ to } 3.5 \text{ billion}$ years ago

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Similar Questions

Explain the origin of the Earth and the sequential changes that occurred on it.

From which of the following did Miller synthesize simple amino acids?

Assertion : Organic compounds first evolved in earth required for origin of life were protein and nucleic acid.
Reason : All life forms were in water environment only.

Origin of life from nonliving matter is known as

$A$: Theory of biogenesis explains that life arises from pre-existing life. $R$: Louis Pasteur finally disapproved the theory of spontaneous generation of life.

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