Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 47, Problem 4TY
Summary Introduction
Introduction:
Biological diversity, biodiversity, is the variations in different species and the ecosystems in which these species survive. Biodiversity is studied in three stages, species diversity, genetic diversity, and ecosystem diversity.
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Which of the following organisms would be most likely to become invasive if introduced to a new habitat?
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Chapter 47 Solutions
Principles of Biology
Ch. 47.1 - In 1977, Rafael Guzman, a Mexican biologist,...Ch. 47.2 - Prob. 1TYKCh. 47.2 - Prob. 2TYKCh. 47.3 - Prob. 1CCCh. 47.3 - Prob. 2CCCh. 47.3 - Prob. 1BCCh. 47.3 - Prob. 1TYKCh. 47.3 - Prob. 2TYKCh. 47.3 - Prob. 3TYKCh. 47 - Prob. 1TY
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- Community 1 is formed of species A, B, C, D, and E. Community 2 is formed of species A, C, F, G, H. What is beta diversity, as estimated using the Jaccard indexarrow_forwardOrganisms that damage crop plants are the most costly of introduced species. Weeds, pathogenic microbes, and arthropods that attack crops together account for half of the costs documented by Pimentel and his colleagues. What steps can we—farmers, governments, and all of us as a society—take to minimize the impacts of invasive species on crops?arrow_forwardCommunities are defined by? A). Species whose ranges overlap B). Species that have the same ranges C). physical features of a defined geographic region D). The area occupied by the species with the largest rangearrow_forward
- Explain howhuman intervention can change biodiversity in positive ways.arrow_forward1. What is diversity? 2. Differentiate between predation and herbivory. 3. List and give examples of four different defense mechanisms against predation and herbivory. 4. What is the competitive exclusion principle? 5. What is a niche? 6. What is symbiosis? 7. Define each of the three types of symbiotic relationships. 8. What is biodiversity? 9. What is species richness? 10. What is meant by relative species richness? 11. Differentiate between a foundation species and a keystone species. 12. What are several types of environmental disturbances? 13. What is succession? 14. Contrast primary and secondary succession. 15. What is a pioneer species? 16. What are the three stages of secondary succession and describe the vegetation that represents each stage.arrow_forwardSpecies can benefit from (+) or suffer from (-) an interaction, or be unaffected by it (0). Which symbols best represent parasitism? +, 0 +, - +, + 0, 0arrow_forward
- Label the species interactions based on the effect they have on each species, positive (+), negative (-) or no effect (0). Interactions that are +/+ are called and +/0 is called an example of +/- is -- is called -/0 is called A. Mutualism; parasitism; commensalism; competition; amensalism B. Facilitation; parasitism; competition; commensalism; mutualism C. Mutualism; predation; competition; amensalism; commensalism D. Mutualism; herbivory; competition; commensalism; amensalism E. Facilitation; predation; exploitation; amensalism; phoresyarrow_forwardA realized niche describes the conditions of the environment in which a species is actually found, while a fundamental niche describes the potential environmental conditions tolerated by a species. True Falsearrow_forwardWhich is true? a) communities may be contained within a population b) demes may be contained within a subpopulation c) populations may be contained within a neighborhood d) the biosphere may be contained wthin a deme e) all of the above are truearrow_forward
- High diversity is equated with communitylecosystem stability because: It helps buffer environmental stresses on a community/ecosystem It provides a variety of nutrient source It sustains complex ecological interactions None is correctarrow_forwardEnvironmental scientists David Pimentel, Rodolfo Zuniga, and Doug Morrison of Cornell University reviewed scientific estimates for the economic and ecological costs imposed by introduced and invasive species in the United States. They found that, as of 2005, approximately 50,000 species had been introduced in the United States and that these accountedfor over $120 billion in economic costs each year. These costs include direct losses and damage, as well as costs required to control the species. (The researchers did not quantify monetary estimates for losses of biodiversity, ecosystem services, and aesthetics, which they said would drive total costs several times higher.) Calculate values missing from the table to determine the number of introduced species of each type of organism and the annual cost that each imposes on our economy. Of the 50,000 species introduced into the UnitedStates, half are plants. Describe two ways in whichnon-native plants might be brought to a new location.How…arrow_forwardwhich of the following statement is false: -The two major compounds in the atmosphere that are responsible for acidic precipitation are sulfuric acid and nitric acid. -Evolution in a parasite from ectoparasitism to endoparasitism would most likely be caused by an increase in the number or intensity of natural enemies of the parasite. -A fundamental niche is often not realized because no one species has exclusive access to all the resources within its fundamental niche. -Competition is often an important driver of early succession, while facilitative interactions tend to play a more dominate role later in succession.arrow_forward
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