Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Textbook Question
Chapter 54, Problem 14TYU
Many plants that produce nodules for nitrogen-fixing bacteria are common on disturbed sites. Explain how these plants might simultaneously compete with and facilitate other plant species.
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Chapter 54 Solutions
Biology (MindTap Course List)
Ch. 54.1 - Define ecological niche and distinguish between an...Ch. 54.1 - Define competition and distinguish between...Ch. 54.1 - Summarize the concept of the competitive exclusion...Ch. 54.1 - Define predation and describe the effects of...Ch. 54.1 - Distinguish among mutualism, commensalism, and...Ch. 54.1 - How are acorns, gypsy moths, and Lyme disease...Ch. 54.1 - Why is an organisms realized niche usually...Ch. 54.1 - Which principle of community ecology is...Ch. 54.1 - Name the three kinds of symbiosis and give an...Ch. 54.2 - Prob. 6LO
Ch. 54.2 - Prob. 7LOCh. 54.2 - Prob. 1CCh. 54.2 - Prob. 2CCh. 54.3 - Summarize the main determinants of species...Ch. 54.3 - Prob. 9LOCh. 54.3 - Prob. 1CCh. 54.3 - Prob. 2CCh. 54.3 - Prob. 3CCh. 54.4 - Define succession and distinguish between primary...Ch. 54.4 - Prob. 11LOCh. 54.4 - Prob. 12LOCh. 54.4 - Prob. 1CCh. 54.4 - Prob. 2CCh. 54.4 - Prob. 3CCh. 54 - A symbiotic association in which organisms are...Ch. 54 - A species __________ is the totality of its...Ch. 54 - Prob. 3TYUCh. 54 - The tendency for two similar species to differ...Ch. 54 - Competition with other species helps determine an...Ch. 54 - Complete competitors cannot coexist is a statement...Ch. 54 - Prob. 7TYUCh. 54 - The _______________ signifies that species...Ch. 54 - An unpalatable species demonstrates its threat to...Ch. 54 - A limiting resource does all the following except...Ch. 54 - An ecologist studying several forest-dwelling,...Ch. 54 - Support for the individualistic model of community...Ch. 54 - Prob. 13TYUCh. 54 - Many plants that produce nodules for...Ch. 54 - EVOLUTION LINK The rough-skinned newt, which lives...Ch. 54 - EVOLUTION LINK Competition is an important part of...Ch. 54 - INTERPRET DATA Examine the top and middle graphs...Ch. 54 - SCIENCE, TECHNOLOGY, AND SOCIETY Describe the...
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- Which of the following explains why pea plants in high soil nitrogen conditions have so few rhizobial nodules on their roots? When there is already high soil nitrogen there is a very large cost to having rhizobial nodules. The rhizobia bacteria in the nodules fix nitrogen when there isn't enough in the soil, so when there is already high soil nitrogen there is no advantage for the pea plant to expend the extra energy housing the rhizobia. The rhizobia bacteria in the nodules use nitrogen when there isn't enough in the soil, so in conditions of high soil nitrogen the plant tries to exclude the rhizobia to keep the nitrogen for itself. When there is already high soil nitrogen there is no benefit to the plant to having rhizobial nodules, which can rob the plant of the high nitrogen supplies so that the rhizobia bacteria do not have to fix the nitrogen themselves.arrow_forwardExplain the consequences to the nitrogen gas in the atmosphere if all the nitrogen- fixation prokrayotes would die suddenly.arrow_forwardHow do the nitrogen-fixing genera Azospirillum and Rhizobium associate with plant roots? Rhizobium stays on the outside of the roots of tropical grasses, while Azospirillum grows inside the roots of legumes. Azospirillum and Rhizobium both stay on the outside of roots. Azospirillum stays on the outside of the roots of tropical grasses, while Rhizobium grows inside the roots of legumes. Azospirillum and Rhizobium both grow inside specialized root cells.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? a) To increases usable nitrogen in the soil. b) To increase water retention. c) Nitrogen-fixing plants are not a food crop. d) To decrease bacteria in the soil.arrow_forwardThe specific relationship between a legume and its mutualisticRhizobium strain probably depends on(A) each legume having a chemical dialogue with a fungus.(B) each Rhizobium strain having a form of nitrogenase thatworks only in the appropriate legume host.(C) each legume being found where the soil has only theRhizobium specific to that legume.(D) specific recognition between chemical signals and signalreceptors of the Rhizobium strain and legume species.arrow_forwardExplain how overirrigation can damage soils and reducecrop yields.arrow_forward
- How do the nitrogen fixers help in fixing Nitrogen for the plant?arrow_forwardThe 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 concentrationarrow_forwardThe 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. Crop rotation would allow the farmer to reduce which of the following? a) Planting seeds. b) Watering the fields. c) The use of manufactured fertilizer. d) The burning of fossil fuels by farm equipment.arrow_forward
- Why is nitrogen fixation so energetically costly?arrow_forwardExplain in detail, why and how micropropagation can reestablish plant material to produce millions of plants to transfer in a particular area.arrow_forwardOne of the most widely known symbioses between microorganisms and plants is that of rhizobia and legumes. The basis of this mutualistic, symbiotic relationship can be described by which of the following statements? Actually, all of these are accurate descriptions of the symbiosis between rhizobia and plants. Rhizobia help the plants expand access to minerals in the soil while the plant protects the rhizobia from predators and viruses. The rhizobia will conduct photosynthesis which allow the plants to access carbon without having to deplete their own energy to do carbon fixation. The rhizobia fix nitrogen for the plant while the plant fixes carbon which it shares with the rhizobia. The rhizobia will produce oxygen which will help the soil to maintain oxygenation and thus avoid pathogens.arrow_forward
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