In the 1930s, the gray wolf was hunted to near extinction across the western United States. In

Question:

In the 1930s, the gray wolf was hunted to near extinction across the western United States. In 1995, 14 wolves were reintroduced to Yellowstone National Park. In the following year, 17 more wolves were released into the park. By the end of 1996, there had been 20 births and 11 mortalities, leaving 40 wolves. The wolf population in Yellowstone National Park is shown in Table 22 for various years.
Table 22
Wolf Population
Year Population
2005 ……………. 118
2006 ……………. 136
2007 ……………. 171
2008 ……………. 124
2009 ……………. 96
2010 ……………. 97
2011 ……………. 98
a. For the years listed in Table 22, find the changes in population from each year to the next.
b. From what year(s) to the next did the population increase the most? What is the change in population?
c. From what year(s) to the next did the population decrease the most? What is the change in population?
d. From 2005 to 2006, the change in the population was 18 wolves. Does that mean that there were 18 births? Explain.