I have a data set consisting of two different groups (A and B) each with 5 specimens. We tested 73 different variables in each specimen and recorded the data. I am new to statistics, so I am struggling to find the best method(s) in which to analyse the data so that I can find which variable(s) is/are statistically different between the two groups. I do not know which variables are independent, dependent, or some mixture there of. I am using R to do the analysis on this data set, but I can fingure out how to use R once I figure out what tests and steps need to happen statistically first.