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8 November, 07:23

In a 10 m2 ecosystem, there are 40 possums. What is the population density of possums?

02 per m2

04 per m2

010 per m2

040 per m2

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  1. 8 November, 07:49
    0
    The answer is 04 per m2.

    This could be solved using a proportion. If 40 possums live in 10 m2, how many possums will live in 1 m2:

    40 possums : 10 m2 = x possums : 1 m2

    x possums = 40 possums : 10

    x possums = 4 possums

    So, there will be 4 possums in 1 m2 and the population density is 4 possums per m2.
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