It was during the seventeenth and eighteenth centuries that medicine emerged as a practice based on science instead of an art based on religion and superstition. a) true b)false

The correct answer is true.

It is true that during the seventeenth and eighteenth centuries,  medicine emerged as a practice based on science instead of art based on religion and superstition.

Instead of using plants and beverages, medicine started to become a professional practice at that time. Colleges started to emphasize medical studies and education. Scientific Societies were established, helping to form a serious body of researchers. Many people helped to medical science such as Joseph Priestly, Jesse Bernet, and Edward Venner.  

the answer is mass marketing.

b.

one company controls all the means of production of a product.

~coco