Morphine was the first single-substance drug to be derived from a plant, in this case from the resin of the opium poppy (Papaver somniferum) by a German pharmacist named Setru â¦ rner, in 1803-1805. It was first sold commercially by Heinrich Merck in the 1820's.
1 To find percentiles outside of this range, use the PERCENTILE.INC function. The syntax on this function is exactly the same as for the PERCENTILE.EXC function.  If you will need this worksheet to run on versions of Excel prior to 2007, use PERCENTILE instead of PERCENTILE.EXC or PERCENTILE.INC.
What do MCAT percentiles mean? The percentile in the score report is a measure of how well your score compares with all other people who took the MCAT. It is NOT a measure of what percentage of questions you got right. For example, a 95th percentile score means that 95% of all test takers received the same score or lower. In other words, a student that attains a 95th percentile score is in the top 5% of all test takers. When the new MCAT was launched in 2015, there was a lot of concern about all the new content that would be tested.