Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 53, Problem 2TYK
Summary Introduction
To review:
The correctness and incorrectness of the statement “Most of the net primary productivity that is consumed is used for growth by primary consumers.”
Introduction:
The energy that is produced in the form of chemical energy by the producers (usually green plants) in a given space and time is known as gross primary productivity (GPP). The plants utilize a small portion of this GPP for respiration and growth.
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Satisfied demand: what is offered to the market is exactly what the market requires.
Unsatisfied demand: What is produced or offered does not meet the market's requirements.
Give examples of satisfied and unsatisfied demand.
Example of how the US attempts to achieve productivity.
Assume 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?
Chapter 53 Solutions
Biological Science (6th Edition)
Ch. 53 - What is the main global reservoir of nitrogen?Ch. 53 - Prob. 2TYKCh. 53 - Prob. 3TYKCh. 53 - Devegetation has what effect on ecosystem...Ch. 53 - Prob. 5TYUCh. 53 - Explain why decomposition rates in a field in...Ch. 53 - Why are the open oceans nutrient poor? Why are...Ch. 53 - Prob. 8TYUCh. 53 - Prob. 9TYPSSCh. 53 - During the Carboniferous period, rates of...
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- The main difference of the exponential growth model and logistic growth model is limit on resources value of specific growth rate having a lag phase stationary and death phasesarrow_forwardDistinguish between gross primary productivity (GPP) and net primary productivity (NPP)arrow_forwarddefine primary producer and define secondary consumerarrow_forward
- Compare the two microhabitats based on the Net Primary Production (NPP), Community Respiration (CR), and Gross Primary Product (GPP).Reference:https://www.youtube.com/watch?v=ZdgGQ5BpK-0arrow_forwardConsider the following actual and forecastdemand levels for Big Mac hamburgers at a local McDonald’srestaurant: The forecast for Monday was derived by observing Monday’sdemand level and setting Monday’s forecast level equal tothis demand level. Subsequent forecasts were derived by usingexponential smoothing with a smoothing constant of 0.25.Using this exponential smoothing method, what is the fore-cast for Big Mac demand for Friday?arrow_forwardWhat is the difference between a primary consumer and a secondary consumer?arrow_forward
- According to Damron, aquaculture accounts for what percentage of total US cash receipts of total animal agriculture? 0.3 0.85 1.5 2.5 5arrow_forwardb) Describe the relationship between Gross Primary Productivity (GPP), Net Primary Productivity (NPP), and Respiration (R)- but do not use any of these terms! How would you describe it to someone who does not like all those technical words? Coarrow_forwardThe logistic model incorporates carrying capacity to make the model exponentialarrow_forward
- Use the following information to respond to the prompts below the data table. JUST ANSWER C AND D Trophic Level Net Production (kJ m-2yr-1) Respiration (kJ m-2yr-1) Top Carnivores 63 25 Carnivores 1321 280 Herbivores 6178 7900 Producers 36922 50060 a) Draw a pyramid of productivity for this data. (answered in photo) NO NEED FOR ANSWER b) Calculate GSP for each of the trophic levels indicated above. ANSWERED. NO NEED FOR ANSWER Producers: NSP=GSP- RESPIRATION GSP=NSP + RESPIRATION GSP=36922+50062 GSP= 86984 Herbivores: GSP=NSP + RESPIRATION GSP=6178+7900 GSP= 15078 Carnivores: GSP=NSP + RESPIRATION GSP=1321+280 GSP= 1601 Top carnivores: GSP=NSP + RESPIRATION GSP=63+25 GSP=88 c) Identify what information is unaccounted for in the data and outline how this is important to determining the productivity of a consumer. d) Explain why pyramids of productivity must always be upright and cannot be invertedarrow_forwardWhich of the following statements is correct? For this question 1 or more statements may be correct. If you select an incorrect statement you will lose points. When it comes to measuring the productivity of farms over the years USDA does not prefer looking at the crop yield per acre and the agricultural value-added per worker Productivity measures changes in the efficiency with which inputs are transformed into outputs The 3 special conditions of agriculture mentioned in the lectures are: biological, physical and market conditions Asset fixity is a problem because it is difficult to purchase the required capital equipment for farms Functional foods, are Foods designed to have only basic nutritional functions.arrow_forwardGive typing answer with explanation and conclusionarrow_forward
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