Why D is wrong? The data suggest top-down control because snowshoe hare survival increased whenever predators were excluded.The data suggest bottom-up control because snowshoe hare survival increased when either fertilizer or food supplements wereaddeded.The data suggest both bottom-up and top-down control because snowshoe hare survival increased the most when predatorswere excluded and food supplements were added.x O Boreal forests (where snowshoe hares are found) are cold but fairly productive. The relatively high productivity suggests thatbottom-up control should be most important. 0.280.240.200.160.120.080.04ControlsFertilizerFoodPredatorPredatorExclosure Exclosure+FoodThe above figure based on data from Krebs et al. (1995) depicts the results from a manipulative experiment to determine factorsaffecting snowshoe hare survival rates (y-axis). Mean survival rates are reported for snowshoe hares under normal conditions (control);in areas with fertilizer added; in areas with additional food supplements; in areas free from predators; and in areas with foodsupplements and free from predators. Based on this figure, which of the following statements is most likely true?SURVIVAL RATE (PER YEAR)

In nature, bottom-up and top-down controls frequently coexist. Bottom-up control is likely to…

The data suggest top-down control because snowshoe hare survival increased whenever predators were excluded. The data suggest bottom-up control because snowshoe hare survival increased when either fertilizer or food supplements were addeded. The data suggest both bottom-up and top-down control because snowshoe hare survival increased the most when predators were excluded and food supplements were added. xO Boreal forests (where snowshoe hares are found) are cold but fairly productive. The relatively high productivity suggests that

The data suggest top-down control because snowshoe hare survival increased whenever predators were excluded. The data suggest bottom-up control because snowshoe hare survival increased when either fertilizer or food supplements were addeded. The data suggest both bottom-up and top-down control because snowshoe hare survival increased the most when predators were excluded and food supplements were added. xO Boreal forests (where snowshoe hares are found) are cold but fairly productive. The relatively high productivity suggests that

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter11: Genome Alterations: Mutation And Epigenetics

Section: Chapter Questions

Problem 8QP: Bruce Ames and his colleagues have pointed out that although detailed toxicological analysis has...

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