Answer:
Including DNA, ATP, and many identical or nearly identical enzymes.
Step-by-step explanation:
All living beings are made up of cells and although the structures of an animal cell are different from a plant cell, which in turn is different from a bacterial cell and so on, all cells of all living beings have some similar molecules that It is vitally important for anyone to be alive. These molecules include DNA, ATP, and many identical or nearly identical enzymes.
It is through these similarities that it is possible to conduct comparative biochemistry studies, which shows the degree of similarity between individuals of the same species is related to the degree of kinship.