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A group of researchers are assessing energy availability in a terrestrial ecosystem. The image shows the food web for this ecosystem. They set up three plots and assess the biomass of producers, primary consumers, and secondary consumers. Rabbits and grasshoppers feed on ground cover plants that grow on the forest floor. Plot 1 is composed of mature hardwood trees, and only 25% of the sunlight reaches the shrubs and grasses compared to plots 2 and 3, which have fewer trees and allow more sunlight to reach the forest floor. Mountain lion Hawk Snake Insect Shrew eating bird Deer Rabbit Squirrel Grasshopper Tree Fungus Grass Shrub Based on the food web shown here, which of the following best describes how the reduction in sunlight to the forest floor would impact the number of primary consumers (squirrel, grasshopper, rabbit, and deer) in plot 1 compared to the other plots? Plot 1 will show an increase in deer only because they feed on trees. Plot 1 will show a decrease in squirrels and rabbits, while deer and grasshoppers will increase. Plot 1 will show a decrease in rabbits and grasshoppers, while squirrels and deer will increase. Plot 1 will show a decrease in all primary consumers because of the lack of sunlight reaching the grass and shrubs.

A group of researchers are assessing energy availability in a terrestrial ecosystem. The image shows the food web for this ecosystem. They set up three plots and assess the biomass of producers, primary consumers, and secondary consumers. Rabbits and grasshoppers feed on ground cover plants that grow on the forest floor. Plot 1 is composed of mature hardwood trees, and only 25% of the sunlight reaches the shrubs and grasses compared to plots 2 and 3, which have fewer trees and allow more sunlight to reach the forest floor. Mountain lion Hawk Snake Insect Shrew eating bird Deer Rabbit Squirrel Grasshopper Tree Fungus Grass Shrub Based on the food web shown here, which of the following best describes how the reduction in sunlight to the forest floor would impact the number of primary consumers (squirrel, grasshopper, rabbit, and deer) in plot 1 compared to the other plots? Plot 1 will show an increase in deer only because they feed on trees. Plot 1 will show a decrease in squirrels and rabbits, while deer and grasshoppers will increase. Plot 1 will show a decrease in rabbits and grasshoppers, while squirrels and deer will increase. Plot 1 will show a decrease in all primary consumers because of the lack of sunlight reaching the grass and shrubs.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A group of researchers are assessing energy availability in a terrestrial ecosystem. The image shows the food web for this ecosystem. They set up three plots and assess the biomass of producers, primary consumers, and secondary consumers. Rabbits and grasshoppers feed on ground cover plants that grow on the forest floor. Plot 1 is composed of mature hardwood trees, and only 25% of the sunlight reaches the shrubs and grasses compared to plots 2 and 3, which have fewer trees and allow more sunlight to reach the forest floor. Mountain lion Hawk Snake K Insect- Shrew eating bird Deer Rabbit Squirrel Grasshopper Tree Fungus Grass Shrub Based on the food web shown here, which of the following best describes how the reduction in sunlight to the forest floor would impact the number of primary consumers (squirrel, grasshopper, rabbit, and deer) in plot 1 compared to the other plots? Plot 1 will show an increase in deer only because they feed on trees. Plot 1 will showa decrease in squirrels and rabbits, while deer and grasshoppers will increase. Plot 1 will show a decrease in rabbits and grasshoppers, while squirrels and deer will increase. Plot 1 will show a decrease in all primary consumers because of the lack of sunlight reaching the grass and shrubs.
Transcribed Image Text:A group of researchers are assessing energy availability in a terrestrial ecosystem. The image shows the food web for this ecosystem. They set up three plots and assess the biomass of producers, primary consumers, and secondary consumers. Rabbits and grasshoppers feed on ground cover plants that grow on the forest floor. Plot 1 is composed of mature hardwood trees, and only 25% of the sunlight reaches the shrubs and grasses compared to plots 2 and 3, which have fewer trees and allow more sunlight to reach the forest floor. Mountain lion Hawk Snake K Insect- Shrew eating bird Deer Rabbit Squirrel Grasshopper Tree Fungus Grass Shrub Based on the food web shown here, which of the following best describes how the reduction in sunlight to the forest floor would impact the number of primary consumers (squirrel, grasshopper, rabbit, and deer) in plot 1 compared to the other plots? Plot 1 will show an increase in deer only because they feed on trees. Plot 1 will showa decrease in squirrels and rabbits, while deer and grasshoppers will increase. Plot 1 will show a decrease in rabbits and grasshoppers, while squirrels and deer will increase. Plot 1 will show a decrease in all primary consumers because of the lack of sunlight reaching the grass and shrubs.
Scientists studied changes in proline, which is an indicator of plant stress and overall protein content in the corn plant when leaves had been consumed by grasshoppers. Corn plants were exposed to varying numbers of grasshoppers and compared to control plants with no grasshopper exposure. The bar graphs, with error bars, show the mean proline and protein content. 40 14 12 30 10 10 Control (0) 10 20 40 Control (0) 10 20 40 Herbivory Herbivory Which of the following statements best describes the likely outcome based on the growth of corn plants within this study in terms of the dependent variables shown? When there is an increase of the dependent variable, the number of grasshoppers, measured against the independent variables, proline and protein, the corn plants would have slower growth and be smaller than the control plants. When there is a decrease in the dependent variable, the number of grasshoppers, measured against the independent variable, proline and protein content, the growth of the corn plants would be similar to or greater than that of the control plants. When there is a decrease in the dependent variables, proline and protein content, measured against the independent variable, the number of grasshoppers, the corn plants would have slower growth and be smaller than the control plants. When there is a decrease in the dependent variable, protein content and proline content, measured against the independent variable, number of grasshoppers, the corn plants would have similar or greater growth than control plants. Protein Protein %
Transcribed Image Text:Scientists studied changes in proline, which is an indicator of plant stress and overall protein content in the corn plant when leaves had been consumed by grasshoppers. Corn plants were exposed to varying numbers of grasshoppers and compared to control plants with no grasshopper exposure. The bar graphs, with error bars, show the mean proline and protein content. 40 14 12 30 10 10 Control (0) 10 20 40 Control (0) 10 20 40 Herbivory Herbivory Which of the following statements best describes the likely outcome based on the growth of corn plants within this study in terms of the dependent variables shown? When there is an increase of the dependent variable, the number of grasshoppers, measured against the independent variables, proline and protein, the corn plants would have slower growth and be smaller than the control plants. When there is a decrease in the dependent variable, the number of grasshoppers, measured against the independent variable, proline and protein content, the growth of the corn plants would be similar to or greater than that of the control plants. When there is a decrease in the dependent variables, proline and protein content, measured against the independent variable, the number of grasshoppers, the corn plants would have slower growth and be smaller than the control plants. When there is a decrease in the dependent variable, protein content and proline content, measured against the independent variable, number of grasshoppers, the corn plants would have similar or greater growth than control plants. Protein Protein %
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