Simple one-celled cyanobacteria like organisms appeared on earth

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6.Evolution

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Simple one-celled cyanobacteria like organisms appeared on earth

A

$5600\; million$ years ago

B

$5000 \;million$ years ago

C

$4600 \;million$ years ago

D

$3.3 \;to \;3.5 \;billion$ years ago

Solution

Origin of earth – $4.5 \;billion$ years ago.
Cynobacteria appeared – about $3.3.\; to \;3.5 billion$ years ago

Standard 12

Biology

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