agroecosystems
Farming creates novel ecological conditions known as agroecosystems that differ from natural ecosystems in a number of ways. Which of the following is not a way that agroecosystems differ from natural ecosystems? (Points : 1) Ecological succession is halted to keep the agroecosystem in an early-successional state.
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Write My Essay For MeThe focus is on monoculture (one plant species instead of many).
Crops are planted in rows and fields.
Agroecosystems require plowing, which is unlike any natural soil disturbance.
All of the above are valid ways that agroecosystems differ from natural ecosystems.
Asia Europe Australia Both a & c All of the above (a, b, & c) |
Rangeland is not marked by fencing while pasture is surrounded with barbed or electric wire. Rangeland provides food for grazing without planting or plowing while pasture is plowed, planted, and harvested to provide forage for animals. Pasture does not utilize irrigation while rangeland is irrigated regularly. Pasture and rangeland are the same; however, the term pasture is utilized in the U.S. while rangeland is utilized in Europe and other parts of the world. All of the above |
Organic fertilizers do not provide enough chemical elements to replace those lost during farming Organic fertilizers must be used in conjunction with regular irrigation to ensure effectiveness Organic fertilizers are toxic to animals which means they can’t be used on pastures Organic fertilizers are toxic to humans which means that they can’t be used on food crops None of the above |
Increasing the limiting nutrient will improve soil production Increased plowing will release nutrients and increase crop production Irrigation will stimulate carbon turnover and increase crop production Fertilization with a mixture including all of the soil micronutrients is necessary to improve crop growth None of the above |
Application of broad spectrum inorganic toxins Application of artificial organic compounds Utilization of integrated pest management Use of biological controls None of the above |
Eating lower on the food chain ensures that pesticide intake by the consumer is reduced. Eating lower on the food chain ensures sustainability of cattle populations. Due to organismal energy efficiency, eating lower on the food chain may allow the same area of farmland to produce between 10 and 100 times more vegetation per year than eating meat. Both a & b All of the above (a, b, & c) |
Faster and more efficient development of new hybrids Introduction of the “terminator” gene Transfer of genetic properties from widely divergent kinds of life Both a & b All of the above (a, b, & c) |
It prevents farmers from using the next generation of seeds so that they must purchase new seeds each year It prevents a genetically modified crop from spreading to nearby farms and natural areas It keeps Arnold Schwarzenegger away Both a & b None of the above |
Air pollution Damage of biological diversity Soil erosion Both a & c All of the above |
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