The age of the fossil of Dryopithecus on the geological time scale is
$75 \times {10^6}$ years back
$25 \times {10^6}$years back
$2.5 \times {10^6}$ years back
$50 \times {10^6}$years back
It's Obvious
The origin of seeds in the land plants was achieved about $345 \;million$ years ago, in lineages recognised as ancestral to all more advanced vascular plants in
Praying mantis is a good example of
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