To determine which species is most closely related to Species Z, we need to find which species has the fewest genetic differences compared to Species Z. According to the table provided:
[tex]\[
\begin{array}{|c|c|}
\hline
\text{Species} & \# \text{of genetic differences} \\
\hline
\text{Species A} & 12 \\
\hline
\text{Species B} & 3 \\
\hline
\text{Species C} & 14 \\
\hline
\text{Species D} & 28 \\
\hline
\end{array}
\][/tex]
We will compare the number of genetic differences for each species:
- Species A has 12 genetic differences.
- Species B has 3 genetic differences.
- Species C has 14 genetic differences.
- Species D has 28 genetic differences.
The species with the smallest number of genetic differences will be the most closely related to Species Z.
From the given genetic differences:
- 3 (Species B) is the smallest number of differences.
Therefore, Species B, with only 3 genetic differences, is the most closely related to Species Z.