[connectthedots]

Well, it started with Aristotle so you have a lot to catch up on.

And just where did Aristotle get his training in micro or molecular biology?

[jec41]

And just where did Aristotle get his training in micro or molecular biology?

He invented and named the sciences starting with biology.
The advances in biology such as micro or molecular biology came much later, most of it last century. The concepts of study and methods were his.