Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 55, Problem 8TYU
Summary Introduction
Introduction: Fungicides are the chemical compounds. Fungicides have the antifungal properties and are used to kill the
Net ecosystem production or NEP is the difference between the gross primary production and the total respiration lost in an ecosystem.
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In the light of carbon cycle:
a) How we humans disturbed the carbon cycle?
b) What can we do so that these disturbances are not cause and they don’t affect the environment? Suggest at least three ways.
27.
Cultural eutrophication is a natural process.
A) True
B) False
28.
In the carbon cycle _________________________.
A)
CO2 enters the ocean primarily by photosynthesis.
B)
photosynthesis always balances respiration.
C)
Carbon enters the food chain in the form of carbonic acid.
D)
CO2 in the ocean forms a weak acid.
The practice of crop rotation uses nitrogen fixation to create fertile fields. First, a plant without a nitrogen-fixing relationship, such as corn, is planted. After the harvest, a nitrogen-fixing plant replaces the initial crop. Instead of harvesting the nitrogen-fixing plant, however, it is plowed under. The cycle continues in this manner. Which of the following is not an abiotic factor that affects plants being used in crop rotation?
a) NH3 availability
b) Soil temperature
c) Herbivore density
d) Oxygen concentration
Chapter 55 Solutions
Campbell Biology (11th Edition)
Ch. 55.1 - Why is the transfer of energy in an ecosystem...Ch. 55.1 - WHAT IF? You are studying nitrogen cycling on the...Ch. 55.1 - MAKE CONNECTIONS Use the second law of...Ch. 55.2 - Why is only a small portion of the solar energy...Ch. 55.2 - How can ecologists experimentally determine the...Ch. 55.2 - Prob. 3CCCh. 55.2 - MAKE CONNECTIONS Explain how nitrogen and...Ch. 55.3 - If an insect that eats plant seeds containing 100...Ch. 55.3 - Prob. 2CCCh. 55.3 - WHAT IF? Detritivores are consumers that obtain...
Ch. 55.4 - DRAW IT For each of the four biogeochemical...Ch. 55.4 - Why does deforestation of a watershed increase the...Ch. 55.4 - WHAT IF? Why is nutrient availability in a...Ch. 55.5 - Prob. 1CCCh. 55.5 - WHAT IF? In what way is the Kissimmee River...Ch. 55 - Considering the second law of thermodynamics,...Ch. 55 - Prob. 55.2CRCh. 55 - Why would runners hove a lower production...Ch. 55 - If decomposers usually grow faster and decompose...Ch. 55 - In preparing a site for surface mining and later...Ch. 55 - Which of the following organisms is incorrectly...Ch. 55 - Prob. 2TYUCh. 55 - The discipline that applies ecological principles...Ch. 55 - Level 2: Application/Analysis 4. Nitrifying...Ch. 55 - Which of the following has the greatest effect on...Ch. 55 - Prob. 6TYUCh. 55 - Which of the following would be considered an...Ch. 55 - Prob. 8TYUCh. 55 - Level 3: Synthesis/Evaluation 9. DRAW IT (a) Draw...Ch. 55 - Prob. 10TYUCh. 55 - Prob. 11TYUCh. 55 - WRITE ABOUT A THEME: ENERGY AND MATTER...Ch. 55 - Prob. 13TYU
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- 1. Question 1 is based on Figure 1 below. Sunlight co2 in the atmosphere Photosynthesis by producers Plant respiration Animal respiration Carbon fixation by consumers Fossils and fossil fuels Figure 1. Carbon cycle. a) Name the process in "a" and any TWO (2) of the organisms involved. b) Briefly explain how does the proses in "a" contribute to the carbon cycle. c) How does "b" affect the environment in a negative way?arrow_forwardOne of the lessons from a pyramid of production is that _____. A) eating grain-fed beef is an inefficient means of obtaining the energy trapped by photosynthesis B) the energy lost as heat or lost in cellular respiration is 10% of the available energy of each trophic level C) only one-half of the energy in one trophic level is passed on to the next level D) most of the energy from one trophic level is incorporated into the biomass of the next level E) production efficiency is highest for primary consumersarrow_forwardThe image above is a screenshot taken from an online image sharing website, imgur, showing flowers that allegedly grew from the aftermath of the Fukushima Nuclear Powerplant disaster in 2011. Question: “Do you think this post provides strong evidence of the actual conditions of the area?”arrow_forward
- To generate biogas the required biomass resources must be on wet form, else biogas will not produce. How do you disagree or agree with this statement? Justify your answerarrow_forwardThe Venus flytrap is a photosynthetic plant that can trap and eat small insects. The Venus flytrap is a:A) tertiary consumer. B) producer.C) both a producer and secondary consumer. D) both a producer and tertiary consumer.E) secondary consumer. Then expain why the choice is correct and why the others are incorrectarrow_forward1) A scientist finds that the gross primary productivity of the grasslands of the central United States is 55 g / m2 / year. If the respiration loss is 33 g / m2 / year, what is the net primary productivity? a) subtraction from gross productivity and respiration.b) The same as primary productivity.c) The value of respiration.d) The sum of gross primary productivity and respiration.arrow_forward
- Which of the following best describes how using fertilizer would affect the nitrogen cycle? The use of fertilizer would result in more nitrogen in the groundwater. The use of fertilizer would result in less nitrogen in the soil. The use of fertilizer would result in more phosphorus in the soil. The use of fertilizer would result in more nitrogen being added to the carbon cycle.arrow_forwardWhich statement offers the best explanation of how deforesting hubbard brooks watershed (W2) affected the nitrogen cycle? 1. Denitrification rates increased, resulting in a decrease in the export of ammonium 2. Microbial immobilization rates increased, resulting in a decline in stream nitrogen 3. Mineralization rates increased, causing the export of ammonium to increase 4. plant uptake nitrogen stopped, resulting in an increase in the export of nitratearrow_forwardConsider figure 49.8 in the textbook. Note the red versus blue squares and the red versus blue bars in the graph. Please choose all applicable options. a.The difference in color (red versus blue) corresponds to a difference in an abiotic factor. b.The difference in color intensity (dark red versus light red) corresponds to a difference in a biotic factor. c.The difference in color (red versus blue) corresponds to a difference in a biotic factor. d.The difference in color intensity (dark red versus light red) corresponds to a difference in an abiotic factor.arrow_forward
- The practice of crop rotation uses nitrogen fixation to create fertile fields. First, a plant without a nitrogen-fixing relationship, such as corn, is planted. After the harvest, a nitrogen-fixing plant replaces the initial crop. Instead of harvesting the nitrogen-fixing plant, however, it is plowed under. The cycle continues in this manner. Why would nitrogen-fixing plants be plowed under instead of harvested? * To increase water retention. Nitrogen-fixing plants are not a food crop. To increases usable nitrogen in the soil. To decrease bacteria in the soil.arrow_forwardGive the importance of the a) water cycle b) nitrogen cyclearrow_forwardThe practice of crop rotation uses nitrogen fixation to create fertile fields. First, a plant without a nitrogen-fixing relatiorhip, such as corn, is planted. After the harvest, a nitrogen-fixing plant replaces the initial crop. Instead of harvesting the nitrogen-fixing plant, however, it is plowed under. The cycle continues in this manner. Why would nitrogen-fixing plants be plowed under instead of harvested? * To increase water retention. O Nitrogen-fixing plants are not a food crop. To increases usable nitrogen in the soil. To decrease bacteria in the soil.arrow_forward
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