This quiz features an image of graphs describing populations of bunnies vs. wolves. The top graph is an index graph with the year 2006 used as index year of 100%. Answer the following questions based on these graphs.
End Test Now
What was the highest population of wolves over the three year period, approximately?
45
49
51
55
59
In which year was the overall population of animals largest?
2006
2007
2008
Wolves eat bunnies. Between 2006 and 2007, wolves ate bunnies, so the bunny population decreased while the wolves thrived. What likely happened between 2007 and 2008?
The exact same process repeated itself
The bunnies attacked back and started eating wolves, increasing the bunny populations while wolves were eaten
Too few bunnies left meant some wolves starved, so the wolf population decreased, and with less wolves around the bunnies could increase again
A disease affected bunnies but not wolves spread around the forest
Humans began to hunt down bunnies, causing the wolf population to decline
Using 2006 as a base year, the wolf populations for 2009 and 2010 were 60 and 56. What would the respective percentages be as would be mapped on the index graph?
33%, 42%
90%, 100%
133%, 125%
150%, 200%
The index graph for bunnies only was replotted using 2008 as the base year. What would the 3 percecntage points be for the bunny population?
94%, 84%, 100%
100%, 90%, 107%
90%, 97%, 100%
108%, 100%, 124%
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