Answer:
The MOST accurate way to determine the evolutionary relationship between two animals is through the examination of DNA.
Step-by-step explanation:
The diversity of life forms on Earth originated from mutations selected by greater reproductive capacity over time. From the DNA of the original cell came the infinity of life forms with which we share the earth through the mechanisms of mutation and recombination.
Evolutionary history shows us how all living beings are more or less related to each other. Some percentages of similarity between the sequences of the human genome and other species are striking: we have 95% in common with chimpanzees, 89% with mice; 45% with fruit flies and up to 9% with Escherichia coli, the bacteria in our intestines. This similarity is an indication of the common origin of all living beings and enables the analysis of divergences from one species to another.