Question

Which of the following samples has the greatest population density?
a.
125,000 organisms in 2.5 mi2028-02-04-03-00_files/i0170000.jpg
b.
13,000 organisms in 1.0 mi2028-02-04-03-00_files/i0170001.jpg
c.
150,000 organisms in 4.0 mi2028-02-04-03-00_files/i0170002.jpg
d.
100,000 organisms in 0.5 mi2028-02-04-03-00_files/i0170003.jpg

Answer 1

Population density = organisms ÷ area.

a. 125,000 / 2.5 = 50,000 per mi^2
b. 13,000 / 1.0 = 13,000 per mi^2
c. 150,000 / 4.0 = 37,500 per mi^2
d. 100,000 / 0.5 = 200,000 per mi^2

Greatest density is (d).