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Concerned Biologist

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Which of the following concerns would a biologist have as s/he looked at data from 1995-2005?


Use the chart below to answer this question. The chart shows data collected over a 25 year period concerning the population of polar bears, ring seals, and walrus in the Baffin Bay Region.

Year Number of Polar Bears Number of Ring Seals Number of Walruses
1985 400 700 600
1990 425 650 520
1995 450 600 500
2000 400 700 600
2005 375 850 720
2010 385 825 700

The Polar Bear Debate

A

The number of bears showed a sharp decline, which could be attributed to overhunting.

B

The high number of bears led to attacks on human food storage sites.

C

The bears died of starvation as they did not have enough prey.

D

Human exploitation caused all the populations to decline in 2005.