Science test one – Flashcards
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A graph of world population growth over the past 500 years most closely resembled the letter
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J
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According to the IPAT model, which of the following would most likely reduce the environmental impact of a society?
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greater use of birth control by most members of a society
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Recent research suggests that __________ has/have contributed to the large drop in fertility rates in Brazil over the past several decades.
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soap operas
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The figure demonstrates that it requires roughly ________ times more feed input to produce 1 kg of eggs than 1 kg of milk.
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4
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The comparison shown in the figure is environmentally significant because it shows that
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production of beef and pork is resource-intensive
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Cows require a high quantity of feed because they
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take time to grow and have a low energy conversion efficiency
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based on the information in the figure, you might decide to make changes in your diet to diminish your ecological footprint by
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shifting your protein intake from beef and pork to eggs and dairy products
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monoculture
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agricultural practices increase a crop's susceptibility to insect pests
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Recombinant DNA
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is the merging of DNA from unrelated organisms
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managing crop competitors and pests has been challenging to agronomists for centuries. One approach, integrated pest management,
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combines synthetic chemical pesticide with biocontrol techniques
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Raising which of the following requires the most land and water per kg protein produced
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beef cattle
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Bt crops
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have been given a bacterial gene that gives chemical protection against insect pests
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Which of the following requires the least land to produce 1 kg of protein
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chicken
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Which of the following is true
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more than one in three adults in the United States is obese
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Green revolution techniques
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have increased crop yields but may not be sustainable
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________% of the food we consume come from ______ species
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90; 15
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Agricultural productivity increased during the Green Revolution as a result of improvements in fertilizers, crop breeding, pest control, and _________
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irrigation
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Which of the following best describes integrated pest management (IPM)?
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biocontrol measures, crop rotation, and habitat diversification
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People around the world have become more dependent on global markets for their food. As a result, recent U.S. government policies encouraging _______ have had a major negative effect on food availability
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ethanol production
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Plants with showy flowers typically
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are pollinated
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The European Union nations
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do not support the growth or sale of GM crops
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Aquaculture
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can bring economic benefits and food security to many developing regions
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Organic farming
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has become more challenging because of contamination by GM crop varieties
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seed banks are important for
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protecting genetic diversity
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It is more energetically efficient for us to eat more ________
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plant-based foods
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Why did the Indonesian government support IPM for agriculture in 1986?
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Pesticides were costing money, causing pollution, and decreasing yields
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In order for livestock to be considered organic,
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animals must be fed 100% organic agricultural feed
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During the past half century, global food production has _______ world population growth
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grown at a faster rate than
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Normal borlaug, who passed away in 2009, pioneered the development of __________
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high-yield wheat
