If he studied a small sample it wouldn't be a representative sample. since he got such a large sample there is a chance most likely all organisms follow the rules of evolution.
Answer:
Peptide bonds and Amino Acids
Explanation:
Primary structure. The primary structure of a protein refers to the sequence of amino acids in the polypeptide chain. The primary structure is held together by peptide bonds that are made during the process of protein biosynthesis.
Https://cms.springbranchisd.com/Portals/280/staff/robertsh1/2.19%20tuesday.pdf?ver=2013-02-19-125747...
If the results of your experiment do not support your hypothesis than you should rework the hypothesis.
The answer is acetylsalicylic acid.