Question

In a 10 m2 ecosystem, there are 60 raccoons. What is the population density of raccoons?

6 per m2
10 per m2
20 per m2
40 per m2

Answer 1

The answer is 6 per m2.

A population density is the number of animals per 1 m2.
So, this problem can be solved by using a proportion:
If 60 raccoons live in 10 m2, how many raccons will live in the 1 m2.
60 raccoons : 10 m2 = x raccoons : 1 m2
60 raccoons : 10 = x raccoons
x raccoons = 6 raccoons

Thus, the population density is 6 raccoons per m2.

Answer 2

The correct answer is option A,
`6(Racoons)/(m^2)\\`

Step-by-step explanation:

The Population density of any species in an ecosystem is equal to the number of that species living in one unit of area.

Thus , population density can be represented as

`(Total population )/(Total area of habitat) \\`

Substituting the given values in above equation, we get -

`= (60)/(10) (Racoons)/(m^2)\\= 6 (Racoons)/(m^2)\\`