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a group of organisms of the same species that live in the same area. |
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a social science that applies the principles of population ecology to the study of statistical change in human population (the study of human population) |
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the number of individuals within a population per unit area. |
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The relative numbers of organisms of each age within a population. |
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The proportion of males to females in a population |
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the arrival of individuals from outside a population |
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the departure of individuals from a population. |
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the average number of children born per female member of a population during her lifetime |
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the total fertility rate that maintains a stable population size. |
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NATIONAL RATE OF POPULATION CHANGE |
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the rate of change in a population size resulting from birth and death rates alone, excluding migrates |
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A theoretical model of economic and cultural change that explains the declining death rates and birth rates that occurred in Western nations as they became industrialized. |
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What factors lead to increased population? |
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technological innovations, improved sanitation, better medical care, incresed agricultural output, and other a tors that have led to a dexline in death rates, particularly a drop in rates of infant mortality. |
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why do some people say that increased numbers of humans is not a problem? |
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human intelligence is a resource |
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What do other people say about quality of life and resources with increased human population size? |
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people cant leave comfortably |
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Describe the I=PAT formula and its various inputs (the P,A,T) |
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I=impact p=population a=afluence t=technology |
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Describe human population growth through time and the effects of this growth on the environment. What are future population projections? |
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people are living longer so the poplation is booming and it doubles each decade |
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How does population distribution affect the environment? |
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too many clumped in one area causes damaging |
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Describe the implications for an “expanding” population histogram vs. a stable histogram What does population growth depend on? How has technology affected population growth? |
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population growth depends on birth and immigration |
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How do immigration and emigration affect local populations? |
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immigration adds to the population and emigration takes away from the population |
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Although growth rates are declining around the world, fertility rates are still very high in some countries. Why is this dangerous? |
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Describe the demographic transition, its 4 stages and whether it will work for developing countries |
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the demographic transition is a model of economical and cultural change that explained the declining death and birth rates in Western nations as they became industrialized |
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Describe the demographic transition, its 4 stages and whether it will work for developing countries |
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How are poverty and population growth related? |
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How do wealthy nations affect the environment, although they may not have as many people? How does the “wealth gap” cause conflict? |
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Compare traditional with industrialized agriculture |
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What is the relationship between poverty and food? |
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Describe how soil is formed through the various types of weathering |
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Which soil layer is most fertile? |
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Why is soil erosion such a global problem? |
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Why is desertification such a global problem? What was the Dust Bowl? |
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Describe how the following methods conserve farmland: crop rotation, contour farming, terracing, intercropping, shelterbelts, reduced tillage |
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Describe the problems associated with irrigation (waterlogging, salinization) and fertilizers |
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What are causes and consequences of overgrazing? |
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Describe the problems of undernourishment, malnutrition and overnourishment. What is food security, and have we increased or decreased global hunger? |
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Describe the benefits and costs of the green revolution |
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Describe some types of pesticides, and a major problem with resistance |
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Discuss IPM, and what is included in this method of agriculture |
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What are the issues facing GMO’s? What are the benefits and costs? How would people argue for the “precautionary principle” regarding GMOs? |
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Describe a CAFO; why do some people have problems with “factory farming”? What are benefits and drawbacks to this type of livestock raising? What is a sustainable solution regarding eating meat? |
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Describe some benefits and drawbacks regarding aquaculture |
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What is the prognosis for “organic” foods? What are the benefits? How does Community-supported agriculture work? |
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What are genetic, species and ecosystem diversity, and why are they important? |
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What is the Latitudinal Gradient, and why does it occur? |
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Why isn’t it easy to know how many species are on Earth? |
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Describe previous mass extinctions, and why this one (the 6th) is fundamentally different from the others. |
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Describe in detail these causes of biodiversity loss: habitat alteration, invasive species, human population growth, pollution, overharvesting, consumption and climate change |
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Know and be able to discuss WHY we need to conserve biodiversity (environmental and economic reasons) |
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What is the argument behind the belief that we have an ethical obligation to conserve species? |
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What is conservation biology, and what does it try to do? |
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What happens to extinction and colonization on islands that are close vs. far away from the mainland, and on large vs. small islands? |
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Why is the Endangered Species Act so controversial? |
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What is captive breeding and what are some advantages & disadvantages of it? |
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What is a biodiversity hotspot, and why is it important? |
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How does community-based conservation work? What is its major problem? |
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What are the trends regarding urbanization worldwide? Where are the fastest growing cities? |
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Why do people move to the suburbs? |
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What is urban sprawl, and why is it problematic? |
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Understand the role of city and regional planning activities, zoning, Urban Growth Boundaries, and new urbanism, in relation to smart growth. What are the major principles of smart growth? |
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What role does mass transportation play in sustainable cities? Describe some mass transit systems, their advantages and problems |
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How do open spaces enhance urban living? |
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What problems with light and noise pollution occur in cities? |
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Describe some goals of sustainable urban areas. |
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Compare and contrast maximum sustained yield vs. ecosystem-based and adaptive management when dealing with resources |
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Describe some ecological and economic values of forests |
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What is the problem with deforestation? Where is it occurring? What happens to loggers’ jobs? |
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Why was a U.S. National forest system implemented in the U.S.? Who manages these forests? |
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Describe the 4 major types of logging, and some environmental impacts |
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What is the multiple use policy for forests? Which use, realistically, is paramount? |
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What is the role of prescribed fires in forest management? Why are they controversial? |
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What is salvage logging, and how can it be abused? |
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What does the Bureau of Land Management do? |
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What is the foremost goal for U.S. Parks? National Reserves? |
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Who administers National Parks and National Wildlife Refuges? What activities are allowed in each? |
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What is special about Wilderness areas? Why are they controversial? What has happened to these areas in recent years? |
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What is special about Wilderness areas? Why are they controversial? What has happened to these areas in recent years? |
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Describe a World Heritage Area. Describe a biosphere reserve. |
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What is habitat fragmentation and how does it threaten species? |
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Describe the SLOSS dilemma. How do wildlife corridors work? |
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Describe 4 types of hazards and give examples of each |
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Discuss the impact of diseases, and whether they are increasing or decreasing |
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Describe 4 indoor health hazards? |
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What does environmental toxicology do? Why is it important? |
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What did Silent Spring do for the issue of environmental toxicants? |
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Describe various toxicants (i.e. carcinogens, neurotoxins, etc.), and their effects |
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What are endocrine disruptors and why are they important? Give some examples of organisms that have been affected |
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Describe the problems with persistence, bioaccumulation and biomagnifications regarding toxicants |
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What types of human studies are conducted? |
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Describe a dose-response curve. What is LD50? An LE50? What happens below the threshold of response? |
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What makes individuals respond differently to toxins? |
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Describe acute vs. chronic exposure. How do they affect responses? |
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What are synergistic effects of toxins? |
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Discuss the concept of risk assessment, and how we perceive risk |
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What is risk management? Compare the two approaches for determining safety (innocent until proven guilty, precautionary principle approach); which one protects the public better? |
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Who regulates toxic substances in the U.S.? |
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environmental factors that influence human health and quality of life and the health of ecological systems essential to environmental quality and long-term human well-being |
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a substance that acts as a poison to humans or wildlife |
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the scientific field that examines the effects of poisonous chemicals and other agents onhumnas and other organisms |
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Acute vs. chronic exposure |
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the degree of harm a chemical substance can inflict |
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the shift from rural to city and suburban living. |
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a smaller community that rings a city |
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the professional pursuit that attempts to design cities in such a way as to maximize their efficiency, functionality, and beauty. |
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the practice of classifying areas for different types of development and land use |
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a school of thought among architects, planners, and developers that seeks to design neighborhoods in which homes, businesses, schools, and other amenities are within walking distance of another. |
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Strategic decison making about who should extract resources and in what ways, so that resources are used wisely and not wasted |
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maximum sustainable yield |
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the maximal harvest of a particular renewable natural resource that can be accomplished while still keeping the resuorce available for the future. |
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the clearing and loss of forests |
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Helathy Forest Restoration Act |
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the impulse to protect enormous, unusual, or beautiful natural features |
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a loose confederation of individuals and groups that coalesced in the 1980s and 1990s as a response to the increasing success of environmental advocacy |
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public lands consisting of 191 million acres in many tracts spread across all but a few states |
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populations of a species that occur in different geographic areas and vary from one another in some characteristics |
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the disappearance of an entire species from the face of the earth. |
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the disappearance of a particular population from a given area, butr not the entire species globally. |
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a phenomenom that E.O Wilson had defined as "the connections that human beings subconsciously seek with the rest of life." |
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equilibrium theory of island |
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a theory that was initially applied to oceanic islands to explain how species come to be distributed among them. |
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the sum total of all organisms in an area, taking into account the diversity of species, their genes, their populations, and their communities. |
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the practice of capturing members of threatened and endangered species so that their young can be bred and raised in controlled environments and subsequently reintroduced into the wild |
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a species for which meetin its habitat needs automatically helps meet those of many other species. |
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a species that has wide appeal with the public and that can be used to promote conservation efforts that also benefit othe less charismatic services. |
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an area that supports an especially great diversity of species, particularly species that are endemic to the area. |
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a graph showing how number of species varies withthe geographic area of a landmass or water body. |
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community-based conservation |
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the practice of engaging local people to protect land and wildlife in their own region. |
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the practice of cultivationg soil, producing crops, and raising livestock for human use and consumption |
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Land that humans use to raise plants for food and fiber. |
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Land used for grazing livestock |
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a complex plant-supporting system consisting of disintegrated rock, organic matter, air, water, nutrients, and microorganisms. |
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industialized agriculture |
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a form of agriculture that uses large-scale mechanization and fossil fuel combustion, enabling farmers to replace horses and oxen with faster and more powerful means of cultivating, harvesting, transporting, and processing crops. |
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an intensification of the industrialization of agriculture in the developing world in the latter half of the 20th century that has dramatically increased crop yields prodduced per unit area of farmland |
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the physical, chemical, and biological processes that break down rocks and minerals, turning large particles |
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that portion of the soil that is most nutritive for plants and is thus of the most direct importance to ecosytems and to agriculture. |
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the process by which solid materials such as minerals are dissolved in a liquid (usually water) and transported to another location. |
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an adequate, reliable, and available food supply to all people at all times |
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the uniform planting of a single crop over a large area |
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a duel of escalating adaptations between species |
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the attempt to battle pests and weeds with organisms that prey on or parasitize them, rather than by using pesticides |
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integrated pest management |
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the use of multiple techniques in combination to achieve long-term suppression of pests, including biocontrol, use of pesticides, close monitoring of populations, habitat alteration, crop rotation, transgenic crops, alternative tillage methods, and mechanical pest removal |
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any process scientists use to manipulate an organism's genetic material in the lab by adding, deleting, or changing segments of its DNA. |
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the idea that one should not undertake a new action until the ramification |
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a storehouse for samples of the world's crop diversity |
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concentrated animal feeding |
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a huge barn or outdoor pen designed to deliver energy-rich food to animals living at extrmely high densities |
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the raising of aquatic organisms for food in controlled environments |
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agriculture that does not deplete soils faster than they form |
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agriculture that uses no synthetic fertilizers or pesticides but instead relies on bilogical approaches such as compsting and biocontrol |
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community-supported agriculture |
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