Explanation:
Polynomial System of nomenclature was the older form of naming organisms before the advent of binomial system. In polynomial system, a generic name and specific name which consisted of many words were used. It was eventually found to be incompatible and hence was replaced by binomial system.
B. the reason why scientists do he experiment more than once is because they have to compare the first attempt and the second attempt . Because if they are different they have to figure out what id the different or aka what is different. hope this helps ;)
