Jurassic period of the Mesozoic era is characterized by
Gymnosperms are dominant plants and first birds appear
Radiation of reptiles and origin of mammals like reptiles
Dinosaurs become extinct and angiosperms appear
Flowering plants and first dinosaurs appear
Why is nascent oxygen supported to be toxic to aerobic life forms ?
A baby has been born with a small tail. It is a case exhibiting.
The first form of life arise slowly through evolutionary forces from non living molecules is called
The first organisms that invaded land were