Primates originated about
$100$ million years ago
$65$ million years ago
$10$ million years ago
$30$ million years agow
It's Obvious
Which era is called the age of angiosperms?
The first mammals were like …$A$… Their fossils are small sized. Mammals were …$B$… and protected their unborn young inside the mother's body
Choose the correct option for $A$ and $B$ to complete the given $NCERT$ statement
Birds are evolved from
Birds and mammals in geological development of earth arose in period
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