Question

There are 20 mice in a 5 m2 field ecosystem. The population density of mice is _____.
A. 4 per m2
B. 5 per m2
C. 20 per m2
D. 25 per m2

Answer 1

The formula for density = number/ area
In this case number=20
area = 5m^2

Density = 20/5=4 mice per m^2
The right answer is A. 4 per m2