Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Chapter 38, Problem 17RQ
What conditions produce an inverted pyramid of biomass in which the consumers have a greater biomass than the producers? Can you think of an example of an inverted pyramid of numbers in which there are, for example, more herbivores than plants on which they feed?
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A pyramid of biomass shows the mass of all of the organisms in each trophic level of an ecosystem . Look at the biomass pyramid to the right . Based on the data shown , how many kilograms of plant matter would be needed to support the other trophic levels in this ecosystem ?
The gross primary productivity is 100 g/m2/year and the respiration rate is 57 g/m2/year . If the standing crop (of plants) in the above question is 145 g/m2 what will the standing crop (of plants) be a year later, assuming no death/predation?
Group of answer choices
can't tell from the information given
a. 188 g/m2
b. 145 g/m2
c. 245 g/m2
d. 182 g/m2
As the level of carbon dioxide in the atmosphere increases, how will primary productivity impacted? How does this impact populations of primary consumers?
Chapter 38 Solutions
Loose Leaf For Integrated Principles Of Zoology
Ch. 38 - The term ecology is derived from the Greek meaning...Ch. 38 - Prob. 2RQCh. 38 - Prob. 3RQCh. 38 - Define the niche concept. How does the realized...Ch. 38 - Populations of independently living (unitary)...Ch. 38 - Prob. 6RQCh. 38 - Contrast exponential and logistic (= sigmoid)...Ch. 38 - Growth of a population can be hindered by either...Ch. 38 - Herbivory is beneficial for the animal (+) but...Ch. 38 - Prob. 10RQ
Ch. 38 - Define predation. How does the predator-prey...Ch. 38 - Prob. 12RQCh. 38 - Prob. 13RQCh. 38 - What is a trophic level, and how does it relate to...Ch. 38 - Define productivity as the word is used in...Ch. 38 - Prob. 16RQCh. 38 - What conditions produce an inverted pyramid of...Ch. 38 - Prob. 18RQCh. 38 - Prob. 19RQCh. 38 - What do paleontological studies show about the...Ch. 38 - Prob. 1FFT
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Energy transferred from one trophic level to the next in an ecosystem is measured in calories, numbers, and in biomass. If a rangeland has a biomass of 100, 000g/m2 from the grass, how much biomass will be available in human beings who eat the cow that eat that grass?arrow_forwardTrue or False: Among the three types of ecological pyramids, the most useful is the pyramid of biomass because it shows how much kilocalories are available at each trophic level.arrow_forwardWhat is Primary Production and what are the factors that limit primary production in terrestrial and aquatic ecosystems. Give examples of where some of the most productive systems are on land and in water. Distinguish between Gross Primary Productivity and Net Primary Productivityarrow_forward
- Why is the rate of assimilation of energy at the herbivore level called secondary productivity?arrow_forwardIn the following food chain, what biomass of phytoplankton will have been required to produce a 1 kg of big fish? Assume a typical figure for ecological efficiency. Phytoplankton eaten by Zooplankton eaten by Small fish eaten by Big fish A. 10 kg B. 10000 kg (10 metric tons) C. 100000 kg (100 metric tons) D. 100 kg E. 1000 kg (1 metric ton)arrow_forwardAssume there are 1000 units of energy in the producer level of the energy pyramid. How many units of energy are available at each of the three consumer levels?arrow_forward
- What is the difference between gross primary productivity and net primary productivity.arrow_forwardThe position of an organism within a food web is described by its trophic level. When modeling energy dynamics of a food web, losses of energy at these different levels produces a pyramid-shaped distribution of available energy. True or False?arrow_forwardOnly about 10 percent of the energy from each level of an energy pyramid is available to the trophic level above it. (The rest is used to power life processes or is lost as heat .) If the primary producers have ,000 units of stored energy , how much energy would you expect to be transfered to first-level , second level , and third -level consumers ? Fill in the boxes with your answers.arrow_forward
- Construct a biomass pyramid for the following hypothetical scenario. Be sure to include all four trophic levels in the pyramid, and provide the total biomass of living things found at each level. Be sure to include units, and label each trophic level. The shape of your pyramid should be based on the biomass of each trophic level. Levels with more biomass should be drawn wider, and levels with less biomass should be drawn thinner. Note that your biomass pyramid may or may not be a true pyramid. Scenario: Hickory Run Nature Reserve is a 150-acre conservation area filled with plants and animals native to the Mid-Atlantic region of the United States. A baseline study was done to determine the total biomass of producers and consumers living on the reserve. Baseline data will be compared to data collected in future years to determine trends in species accumulation or loss. This comparison is important because the region surrounding the reserve is experiencing a high rate of human development…arrow_forwardTumucumaque National Park ecosystem For each bullet point, describe how each primary producer helps the ecosystem and how the black spider Monkey Consumer helps the ecosystem. Please answer the following question below with at least 2-4 bullet points straight to the point for ONE presentation slide for the following ecosystem Tumucumaque National Park. Banana primary producer (ONE PRESENTATION SLIDE) Black Spider Monkey Consumer (ONE PRESENTATION SLIDE)arrow_forwardDraw an example of a food web, including an example of the following: a primary producer, a primary consumer, a secondary consumer, and a tertiary consumer.arrow_forward
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