16Hit1600
Information and IdeasVery hardReading a table of wolf and elk counts

Information and Ideas practice question

Estimated wolf and elk populations in a national park Year | Wolves | Elk 1995 | 14 | 17,000 2005 | 118 | 9,500 2015 | 99 | 4,900 A biologist argues that the decline in elk cannot be explained by wolf numbers alone, since ____

Which choice most effectively uses data from the table to complete the statement?

  1. A. the elk population roughly halved between 2005 and 2015 even though the number of wolves fell from 118 to 99 over the same period.Correct
  2. B. wolves increased from 14 in 1995 to 118 in 2005.
  3. C. there were 17,000 elk in 1995.
  4. D. elk numbers fell between 1995 and 2005 as wolves increased.

Answer: A. the elk population roughly halved between 2005 and 2015 even though the number of wolves fell from 118 to 99 over the same period.

Elk kept falling while wolves declined.

Why the other answers are wrong

B. wolves increased from 14 in 1995 to 118 in 2005.
Consistent with wolves alone.
C. there were 17,000 elk in 1995.
One figure.
D. elk numbers fell between 1995 and 2005 as wolves increased.
Consistent with wolves alone.

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