Answer:the population density of chipmunks in 2021=256,666.667 per square kilometres
Explanation:
Population density is defined as the number of population per unit area of land
which can be expressed as
Population density =number of population/ land area
Since land area is usually given in square kilometres or square miles we convert 900 square meters to square kilometres
1 square kilometres =1000000 square meters
900 square meters=900/1000000=0.0009 square kilometres
Therefore, the population density of chipmunks in 2021= 231/0.0009 square kilometres =256,666.667 per square kilometres
It is a theory because there is no evidence that supports the scientists theory
Secondary Succession will occur after a fire burns down 100 acres of a forest. thus option C is correct.
<h3>What is secondary succession?</h3>
When a disturbance does not completely remove all life and nutrients from the environment, secondary succession occurs.
Despite the fact that fire, flooding, and other disturbances can devastate a landscape, drive away many plants and animals, and reset the biological community to an earlier stage, the habitat remains alive because the soil stores nutrients and seeds that were laid down before to the disturbance.
Buried seeds can sprout soon after the disruption has passed, and some may have a better chance because of less competition and less shading. Some animals may have evolved to deal with a particular disturbance on a regular basis.
Learn more about secondary succession here:
brainly.com/question/1387957
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The answer is a slim layer, Flagella, and a Fimbriae
Hope this helps!!