Population over Time Time (years) Which population description is most likely represented by the graph? A. A population of birds quickly increases but then becomes stable due to limiting factors in the environment. B. A population of mice slowly increases but then fluctuates seasonally as predators raise their young and limit prey populations. C. A population of fish quickly increases in the spring when there is plenty of food but then decreases quickly in the fall when food is limited. D. A population of wolves slowly increases because of limiting factors in the environment but then increases constantly when additional prey migrates into the environment. Number of Individuals in Population

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Q: two ways in which the polar bear population in the Arctic is affected by pollution. m

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A:

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Population Growth

R and K Selection

R and K selection are concepts in ecology used to describe traits in the fluctuation of a population or population dynamics. For example, they describe the life-association traits between parent and offspring, such as quantity or number of young ones born at a time, quality of parental care, the age to maturity, and reproductive effort.