Agroup 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. population of native species year 1 7,950 year 2 3,460 year 3 1,380 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%

Option B

Percent decrease in the native species population between years 1 and 2 is %

Percent decrease in the native species population between years 2 and 3 is %

Explanation:

Given,

Population of Native Species  

Year 1 -  7,950  

Year 2 -  3,460  

Year 3 -  1,380

Percent decrease in the native species population between any two years is

(Population of base year  Population of next year) (Population of base year)

Percent decrease in the native species population between years 1 and 2

%

Percent decrease in the native species population between years 2 and 3

%