Identify the choice that best completes the statement or answers the question
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87 Each drawing represents different stages in the community succession within the state of Virginia. Which of the following drawings represents the climax community in this succession pattern?
88 Which statement describes all stable ecosystems?
89 The biome with the greatest number of species would also have the greatest variation in —
90 Thirty breeding pairs of rabbits were introduced onto an island with no natural predators and a good supply of water, shrubs, and grasses. Over the next few years, the rabbit population will probably — A . remain relatively constant due to equal birth and death rates
91 Which of these DECREASES as the number of fish in a small pond increases?
92 Why does the white-tailed deer population drop when the carrying capacity is exceeded? 
93 Which of the following is a consumer-producer relationship?
94 Turgor is the internal cytoplasmic pressure that results from the amount of water absorbed by plant cells. The picture shows a turgor pressure demonstration using stalks of celery in different salt solutions. Which of these shows the celery stalks in order from the one with the most turgor pressure to the one with the least turgor pressure? 
95 Which population would be most affected if the snakes were removed from this food web? 
96 Low availability of which element could be a limiting factor in a plant community?
97 Which group is most responsible for the recycling of atoms within the environment?
98 This graph shows the average number of rabbits and coyotes in an area over time. Which conclusion is best supported by these data? 
99 A chemical spill was thought to be responsible for a large fish kill in a river. Which person would most likely determine whether the fish died from being exposed to the chemicals?
100 In this food pyramid, how much energy is available as the energy is passed from one trophic level to another? 
101 During the 1920s and 1930s, Lucy Braun (1889–1971) compared the flora growing in Ohio with flora that had grown in the same area 100 years earlier. Her research most likely added knowledge to the scientific field of —
102 Plants that can tolerate great extremes in environmental temperatures are most often found living in
103 A lichen is composed of two organisms, a fungus and a cyanobacterium. The fungus provides a growing surface, moisture, and nutrients to the cyanobacterium. The cyanobacterium provides food to the fungus. This relationship is considered to be an example of which of the following?
104 An ocean food chain is shown in the diagram. Which organism represents the trophic level containing approximately 1% of the initial amount of solar energy acquired by the phytoplankton?
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113 In 1893, a one-million acre area of the Grand Canyon National Forest Reserve was home to an estimated 3,000 Rocky Mountain mule deer. Cattle, sheep, and horses also roamed the reserve. In 1906, government hunters killed off hundreds of mountain lions, coyotes, and bobcats when the area was set aside as the Grand Canyon National Game Preserve. The number of Rocky Mountain mule deer rose to over 100,000 by 1923. What was the approximate density of the mule deer in 1923?
114 The graph shows the amount of pollutants removed by trees. During October, the trees were able to remove the greatest amount of — 
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