Impact of Feral Swine on Populations of Native Black Bears and Sea Turtles%0D%0ARead this passage before answering any questions.%0D%0A%0D%0AIn many locations across the United States, invasive feral swine (also called wild hogs) have damaged ecosystems and populations of native animals. Feral swine often outcompete native species for resources. For example, feral swine often outcompete native black bears for food supplies, like berries and other vegetation. In addition, feral swine prey on the eggs of some native species. As an example, feral swine will often find the nesting areas used by sea turtles and will dig up and eat the buried eggs. Because of their harmful effects on native ecosystems, hunters and wildlife management officials work hard to remove feral swine in areas where they are invasive. The following graph shows the impact an increasing feral swine population can have on bear populations and on the success rates of sea turtle nests, and it also shows the impact on bear populations and sea turtle nesting success when the feral swine are removed from the area. %0D%0A%0D%0ACarefully examine the graph. Make sure to read the title, axis labels, and legend (key) labels. %0D%0A%0D%0A%0D%0A%0D%0AQuestion 1%0D%0A1. Which one of the following represents the food web relationships among berries, black bears, and feral swine? Make sure to pay close attention to the directions of the arrows.%0D%0A%0D%0A%0D%0A%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0AA%0D%0AA%0D%0A%0D%0AB%0D%0AB%0D%0A%0D%0AC%0D%0AC%0D%0A%0D%0AD%0D%0AD%0D%0AQuestion 2%0D%0A2. How does the graph show the impact of an increasing feral swine population on sea turtle nesting success?(1 point)%0D%0AResponses%0D%0A%0D%0AWhen the feral swine line goes down, the sea turtle nesting success line goes down.%0D%0AWhen the feral swine line goes down, the sea turtle nesting success line goes down.%0D%0A%0D%0AWhen the feral swine line goes up, the sea turtle nesting success line goes up.%0D%0AWhen the feral swine line goes up, the sea turtle nesting success line goes up.%0D%0A%0D%0AWhen the feral swine line goes up, the sea turtle nesting success line is unchanged.%0D%0AWhen the feral swine line goes up, the sea turtle nesting success line is unchanged.%0D%0A%0D%0AWhen the feral swine line goes up, the sea turtle nesting success line goes down.%0D%0AWhen the feral swine line goes up, the sea turtle nesting success line goes down.%0D%0AQuestion 3%0D%0A3. Use the drop down menus to complete the paragraph describing the impact of removing feral swine from the area.(6 points)%0D%0AHunters and wildlife officials work together to %0D%0A the population of feral swine. Feral swine are invasive %0D%0A of sea turtle eggs and invasive %0D%0A of black bears. When feral swine are successfully %0D%0A the area by the hunters and wildlife officials, the sea turtle nesting success rate %0D%0A. In addition, removal of feral swine allows the black bear population to %0D%0A.%0D%0AQuestion 4%0D%0A4. What part of the graph tells you which line represents which population?(1 point)%0D%0AResponses%0D%0A%0D%0Atitle%0D%0Atitle%0D%0A%0D%0Ay axis label%0D%0Ay axis label%0D%0A%0D%0Ax axis label%0D%0Ax axis label%0D%0A%0D%0Alegend (key)%0D%0Alegend (key)%0D%0AQuestion 5%0D%0AConsider the following two graphs, which show the relationship between bears and swine. In one graph, the bears and swine are in different habitats for the entire time period. In the second graph, invasive swine eventually enter the bear habitat so that they are forced to share the same habitat.%0D%0A%0D%0A%0D%0A%0D%0A5. What happens to the success rate of black bears when invasive swine enter their native habitat?%0D%0A%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0AThe black bears outcompete the invasive swine.%0D%0AThe black bears outcompete the invasive swine.%0D%0A%0D%0AThe black bears and invasive swine have similar success rates.%0D%0AThe black bears and invasive swine have similar success rates.%0D%0A%0D%0AThe invasive swine outcompete the black bears.%0D%0AThe invasive swine outcompete the black bears.%0D%0A%0D%0AThe black bears have an increased success rate.%0D%0AThe black bears have an increased success rate.%0D%0AQuestion 6%0D%0A6. What type of relationship do black bears and feral swine have?(1 point)%0D%0AResponses%0D%0A%0D%0Acommensalism%0D%0Acommensalism%0D%0A%0D%0Amutualism%0D%0Amutualism%0D%0A%0D%0Apredator-prey%0D%0Apredator-prey%0D%0A%0D%0Aparasitism%0D%0Aparasitism%0D%0A%0D%0Acompetition

Answer 1

1. The correct response is C.

2. The correct response is D. When the feral swine line goes up, the sea turtle nesting success line goes down.

3. Hunters and wildlife officials work together to decrease the population of feral swine. Feral swine are invasive predators of sea turtle eggs and invasive competitors of black bears. When feral swine are successfully removed from the area by the hunters and wildlife officials, the sea turtle nesting success rate increases. In addition, removal of feral swine allows the black bear population to thrive.

4. The correct response is legend (key).

5. When invasive swine enter their native habitat, the success rate of black bears is not indicated in the provided information. Therefore, the correct response is "The success rate of black bears is not provided in the given information."

6. The correct response is competition.