MCQ
Mammals arose from reptiles in:
- AJurassic period of mesozoic era.
- BTriassic period of mesozoic era.
- ✓Cretaceous period of mesozoic era.
- DCarboniferous age.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$R$ : It is a nucleic acid based diagonostic tool that can confirm presence of infectious microbe at early stages.