Select the correct answer.

A group of scientists studied the invasion of a species in an area and its effect on the population of a native species. Study the given data and determine the percent decrease in the native species population between years 1 and 2, and years 2 and 3.

[tex]\[
\begin{tabular}{|c|c|}
\hline
\textbf{Year} & \textbf{Population of Native Species} \\
\hline
1 & 7,950 \\
\hline
2 & 3,460 \\
\hline
3 & 1,380 \\
\hline
\end{tabular}
\][/tex]

A. 49.6% and 55.3%
B. 56.5% and 60.1%
C. 52.5% and 63.3%
D. 50.4% and 68.9%
E. 54.3% and 67.6%

To determine the percent decrease in the native species population between years 1 and 2 and between years 2 and 3, we need to follow these steps:

1. Calculate the percent decrease from Year 1 to Year 2:
- The population in Year 1 is 7,950.
- The population in Year 2 is 3,460.
- The decrease in population from Year 1 to Year 2 is:
[tex]\[ 7950 - 3460 = 4490 \][/tex]
- To find the percent decrease, divide the decrease by the population in Year 1 and multiply by 100:
[tex]\[ \text{Percent Decrease 1 to 2} = \left( \frac{4490}{7950} \right) \times 100 = 56.5\% \][/tex]

2. Calculate the percent decrease from Year 2 to Year 3:
- The population in Year 2 is 3,460.
- The population in Year 3 is 1,380.
- The decrease in population from Year 2 to Year 3 is:
[tex]\[ 3460 - 1380 = 2080 \][/tex]
- To find the percent decrease, divide the decrease by the population in Year 2 and multiply by 100:
[tex]\[ \text{Percent Decrease 2 to 3} = \left( \frac{2080}{3460} \right) \times 100 = 60.1\% \][/tex]

Given these calculations, we have:
- The percent decrease in the native species population from Year 1 to Year 2 is 56.5%.
- The percent decrease in the native species population from Year 2 to Year 3 is 60.1%.

Therefore, the correct answer is:
B. [tex]$56.5 \%$[/tex] and [tex]$60.1 \%$[/tex].