This passage is adapted from "Yellowstone Wolf Project: Annual Report, 2012."
1. The passage suggests that which of the following previous beliefs about wolf packs may be inaccurate?
A. The sizes of elk populations and wolf populations are related to one another.
B. Wolves are part of the naturally functioning ecosystem.
C. Predator control efforts can be extremely effective.
D. Wolf packs are too dangerous to be left alive.
2. As used in line 14, "native" most nearly means
A. inborn.
B. constitutional.
C. indigenous.
D. canine.
3. As used in line 28, "harvested" most nearly means
A. gathered.
B. killed.
C. acquired.
D. grown.
4. Which of the following, if true, would most weaken the author's argument in lines 30-32?
A. Predation studies on Delta and Bechler packs done by a separate research group show their diet to consist almost entirely of elk.
B. Northern packs that occasionally roam into the park's interior have more stable populations than other northern packs.
C. In 2013 a pack of coyotes infected with mange migrated into the park and wolf populations soon declined.
D. Studies of bison populations are incomplete and are known to over-estimate the number of bison living in YNP.
5. The fifth paragraph (lines 57-85) most strongly suggests which of the following about the predation data gathered in 2012?
A. The wolves are primarily responsible for the drops in the elk population.
B. The predation data is incomplete.
C. Most of the packs were observed by ground teams.
D. Researchers documented characteristics of only wolf prey.