Presence of $NaCl$ in body fluid indicates that life originated in
Primitive ocean
Rain water lakes
Salt solution
All of these
The highest cranial capacity is/was present is
In the developmental history of mammalian heart, it is observed that it passes through a two-chambered fish-like heart, three-chambered frog-like heart and finally four-chambered stage. To which hypothesis can this above cited statement be approximated
For a long time it was believed that life came out of decaying and rotting matter like straw mud, etc.
This was the theory of
is a connecting link between