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A scientist is trying to determine how closely related a moth species (Species Z) is to four other moth species (Species A, B, C, and D). He examined the DNA of each species and compared it to the study subject. He then created this:

\begin{tabular}{|c|c|}
\hline
Species & \# of genetic differences \\
\hline
Species A & 12 \\
\hline
Species B & 3 \\
\hline
Species C & 14 \\
\hline
Species D & 28 \\
\hline
\end{tabular}

Which species is most closely related to the moth species (Species Z)?

A. Species A
B. Species B
C. Species C
D. Species D



Answer :

GinnyAnswer
To determine which species is most closely related to Species Z, we will examine the number of genetic differences between Species Z and each of the four species (A, B, C, and D). The species with the smallest number of genetic differences is considered the most closely related.

Here is the table provided with the number of genetic differences:

[tex]\[ \begin{array}{|c|c|} \hline \text{Species} & \text{Number of Genetic Differences} \\ \hline \text{Species A} & 12 \\ \hline \text{Species B} & 3 \\ \hline \text{Species C} & 14 \\ \hline \text{Species D} & 28 \\ \hline \end{array} \][/tex]

Let's compare the number of genetic differences:

- Species A has 12 genetic differences.
- Species B has 3 genetic differences.
- Species C has 14 genetic differences.
- Species D has 28 genetic differences.

From this comparison, it is evident that:

- Species B has the lowest number of genetic differences (3).

Since Species B has the smallest value (3), it is the most closely related to Species Z.

Therefore, the species most closely related to Species Z is:

Species B

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