Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 55, Problem 4TYK
The open ocean and tropical rain forest are the two largest contributors to Earth’s net primary production because
- a. both have high rates of net primary production.
- b. both cover huge surface areas of Earth.
- c. nutrients cycle rapidly in these two ecosystems.
- d. the ocean covers a huge surface area and the tropical rain forest has a high rate of production.
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"Write a scenario describing what would happen to an ecosystem or to the human system in the event that:(a) All producers are killed through loss of fertility of the soil or through toxic contamination, (b) decomposers and detritus feeders are eliminated.
Support all of your statements with reasons drawn from your understanding of the way ecosystems function"
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Chapter 55 Solutions
Study Guide for Campbell Biology
Ch. 55 - What may happen if the input of a mineral nutrient...Ch. 55 - Compare the movement of energy and chemical...Ch. 55 - a. List some ecosystems with high primary...Ch. 55 - a. Why is production efficiency higher for fishes...Ch. 55 - What is the biological importance of water,...Ch. 55 - a. In which natural ecosystem do nutrients cycle...Ch. 55 - Contrast bioremediation and biological...Ch. 55 - Prob. 1SYKCh. 55 - What is secondary production? How does it relate...Ch. 55 - What processes mediate the interconversion of the...
Ch. 55 - The inefficiency of energy transformations is...Ch. 55 - Which of the following statements about ecosystems...Ch. 55 - Primary production is a. equal to the standing...Ch. 55 - The open ocean and tropical rain forest are the...Ch. 55 - Production in terrestrial ecosystems is affected...Ch. 55 - Which of the following statements concerning net...Ch. 55 - Secondary production is a. measured by the...Ch. 55 - Most food chains have only three to five links....Ch. 55 - Some authors have suggested that humans world-wide...Ch. 55 - Which of the following organisms would you predict...Ch. 55 - If a bird eats seeds with an energy content of 400...Ch. 55 - Biogeochemical cycles are global for elements a....Ch. 55 - The atmosphere is the main reservoir for a. water...Ch. 55 - Which of these processes is incorrectly paired...Ch. 55 - Clear-cutting tropical forests yields agricultural...Ch. 55 - Plants, prokaryotes, and fungi are useful in...Ch. 55 - Which of the following actions is an example of...
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- Nitrogen availability is a limiting factor in crop production. * D. Disagree, because atmospheric nitrogen is about 80% and therefore nitrogen is readily available. A. Agree, because almost 80% of the atmospheric nitrogen (N2) is readily available. C. Agree, because atmospheric nitrogen must first be reduced to ammonia through N-fixation. B. Disagree, because only a small fraction of the atmosphere is composed of nitrogen gas.arrow_forwarda) Each trophic level, on average, will move 10% of the energy tied up in molecules to the next trophic level. How much of the energy from the sun is actually brought in to the first trophic level? b) When the producers convert energy and tie it up in the first trophic level, it is brought in as heat. True or false? c) Which of the following are true about ecosystems? Check all that apply. They contain both living and nonliving components.They contain both living and nonliving components. There is a transfer of energy through the system and some energy is lost as heat energy.There is a transfer of energy through the system and some energy is lost as heat energy. Nutrients repeatedly cycle through the ecosystem.Nutrients repeatedly cycle through the ecosystem. They represent the lowest level of biological organization.They represent the lowest level of biological organization. The ultimate source of energy for most ecosystems is organic molecules.arrow_forwardAn ecologist does an experiment in a grassland. She has several plots of land with prairie plants on them. Each plot is either a control (nothing added) or one of the following nutrients was added (phosphorus, nitrogen, and sulfur). Over the following month the phosphorus and sulfur plots had primary productivity similar to the control plots while the plots with added nitrogen had significantly higher primary productivity. Based on this you can conclude that nitrogen is… Group of answer choices a. flowing b. fixed c. biologically magnified d. a limiting nutrient e. cyclingarrow_forward
- The chronosequence of soil age across the Hawaiian Islands shows which of the following patterns of nutrient change? a. nitrogen and phosphorus increase continuously b. botth nitrogen and phosphorus start high then decrease c. nitrogen increases to a peak, then declines, while weatherable phosphorus declines to low levels fairly quickly (in geological terms) d. phosphorus increases continuously but nitrogen reaches a peak and then declinesarrow_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_forwardWhich of the following approaches would be the most effective way to reduce greenhouse carbon dioxide? a. Increase waste deposition into the deep ocean. b. Plant more environmentally-suitable plants. c. Increase use of fuel sources that do not produce carbon dioxide as a by-product. d. Decrease livestock agriculture.arrow_forward
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