Chemical Fertilizers and the Green Revolution Quiz
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Questions and Answers

Which ecosystem is home to an incredible diversity of fishes in Cambodia?

  • Mekong Delta
  • Amazon river
  • Tonie Sap lake (correct)
  • Great Barrier Reef
  • What is causing the drop in fish catches in Tonie Sap lake?

  • Overfishing
  • Conversion of forest to rice paddies (correct)
  • Natural disasters
  • Pollution
  • What historical event is the fishery in Tonie Sap lake in danger of repeating?

  • The collapse of the Soviet Union
  • The French Revolution
  • The fall of the Roman Empire
  • The fall of Angkor and the Khmer Empire (correct)
  • Which period is referred to as the Anthropocene?

    <p>Age of humans</p> Signup and view all the answers

    What is the Great Acceleration?

    <p>A period of rapid technological advancement</p> Signup and view all the answers

    What have humans done to the global nitrogen cycle?

    <p>Increased nitrogen levels</p> Signup and view all the answers

    What is the purpose of the Understanding Global Change model (UGC)?

    <p>To demonstrate how Earth systems work</p> Signup and view all the answers

    What is the ecological footprint?

    <p>The total area of healthy land and water ecosystems needed to provide the resources you use and to absorb wastes you produce</p> Signup and view all the answers

    What is the challenge of providing basic human needs in Tonie Sap?

    <p>Water, food, and energy</p> Signup and view all the answers

    What is the impact of hydroelectric dams on Tonie Sap?

    <p>Interfering with water and sediment flow and blocking migrating fishes</p> Signup and view all the answers

    What is an ecological disaster that could occur in Tonie Sap?

    <p>Ecosystem collapse</p> Signup and view all the answers

    What is the key component of chemical fertilizers used in the Green Revolution?

    <p>Nitrogen</p> Signup and view all the answers

    What is the strategy called that involves planting large areas with a single highly productive crop year after year?

    <p>Monoculture</p> Signup and view all the answers

    What is the result of deforestation on water quality in streams and rivers?

    <p>Alteration of clarity, taste, and odor</p> Signup and view all the answers

    What is the consequence of large-scale monoculture on soil structure and microbiomes?

    <p>Degradation of soil and prevention of secondary succession</p> Signup and view all the answers

    What is the main cause of the increase in atmospheric carbon dioxide concentration?

    <p>Burning fossil fuels</p> Signup and view all the answers

    What is climate change defined as?

    <p>Measurable long-term changes in averages of temperature, clouds, winds, precipitation, and frequency of extreme weather events</p> Signup and view all the answers

    How does global warming affect the global climate system?

    <p>Changes patterns of precipitation and other environmental factors</p> Signup and view all the answers

    What effect can nitrogen enrichment from burning fossil fuels have on primary producers?

    <p>Affect growth of land plants or cause algal blooms</p> Signup and view all the answers

    Which of the following is NOT included in the UGC model's middle ring?

    <p>Causes of global change</p> Signup and view all the answers

    What is the main cause of measurable changes in Earth systems according to the UGC model?

    <p>Human causes of change</p> Signup and view all the answers

    What human activity is changing Earth's atmosphere faster than it has changed over the entire history of life?

    <p>Raising concentrations of greenhouse gases</p> Signup and view all the answers

    What is the main effect of stress caused by all human activities on organisms and ecosystems?

    <p>Threatens biodiversity and ecosystem services</p> Signup and view all the answers

    Which of the following is a direct human impact on plant and animal populations?

    <p>Hunting to extinction</p> Signup and view all the answers

    What is the primary cause of deforestation in Totonicapan, Guatemala?

    <p>Logging</p> Signup and view all the answers

    Which of the following is a potential consequence of improperly disposed waste in urban areas?

    <p>Contamination of air, water, and soil resources</p> Signup and view all the answers

    What is the relationship between habitat size and the number of species that can live there?

    <p>Larger habitats can support more species</p> Signup and view all the answers

    What is the ecological footprint of the average American compared to the global average?

    <p>The average American has an ecological footprint that is three times as large as the global average.</p> Signup and view all the answers

    What is one way to calculate a country's ecological footprint?

    <p>Multiply the size of the population by the ecological footprint of a typical citizen.</p> Signup and view all the answers

    When did humanity's greatest change in relationship with Earth begin?

    <p>During the Great Acceleration in the 1950s.</p> Signup and view all the answers

    What type of resources are included in the ecological footprint lab mentioned in the text?

    <p>Water, land, and fossil fuels.</p> Signup and view all the answers

    What is ocean acidification and how does it affect marine life?

    <p>Ocean acidification is caused by excess carbon dioxide in the atmosphere and it makes seawater more acidic, which stresses many marine organisms and ecosystems.</p> Signup and view all the answers

    What is the impact of acid rain on freshwater ecosystems?

    <p>Acid rain makes freshwater more acidic, which kills aquatic organisms from algae to fishes.</p> Signup and view all the answers

    What is the impact of methane on global warming and climate change?

    <p>Methane contributes to global warming and climate change.</p> Signup and view all the answers

    What is the impact of agriculture on Earth's land surface?

    <p>Agriculture has transformed roughly three-quarters of Earth's land surface in several ways and for several reasons.</p> Signup and view all the answers

    Which organisms dominate the planet?

    <p>Microbes</p> Signup and view all the answers

    What was the impact of the arrival of Europeans on Native American populations?

    <p>They inadvertently exposed them to deadly diseases.</p> Signup and view all the answers

    What is the relationship between bacteria and the human body?

    <p>Bacteria can help the human body.</p> Signup and view all the answers

    What is the cause of malaria?

    <p>Unicellular eukaryote</p> Signup and view all the answers

    What did Martinus Beijerinck name the tiny particles that cause disease in plants?

    <p>Viruses</p> Signup and view all the answers

    What did Wendell Stanley isolate in 1935?

    <p>Viruses</p> Signup and view all the answers

    What did Dmitri lvanovski discover in 1892?

    <p>The cause of tobacco mosaic disease</p> Signup and view all the answers

    Which type of infection does the T4 virus cause?

    <p>Both lytic and lysogenic infections</p> Signup and view all the answers

    What is a prophage?

    <p>The DNA of a bacteriophage that becomes embedded in the bacterial host's DNA</p> Signup and view all the answers

    What percentage of viruses in humans contain RNA?

    <p>70%</p> Signup and view all the answers

    What type of infection does the HIV virus cause?

    <p>Lytic infection</p> Signup and view all the answers

    Which of the following is a basic shape of prokaryotes?

    <p>Spherical</p> Signup and view all the answers

    What is the process by which most prokaryotes reproduce?

    <p>Binary fission</p> Signup and view all the answers

    What is the main difference between the cell walls of Archaea and Bacteria?

    <p>Archaea have cell walls without pep­t idoglycan</p> Signup and view all the answers

    What is the purpose of pili in E. coli?

    <p>To anchor the bacterium to a surface or other bacteria</p> Signup and view all the answers

    Which of the following is true about prokaryotes?

    <p>Their DNA is located directly in the cytoplasm</p> Signup and view all the answers

    What is the difference between the domains Bacteria and Archaea?

    <p>They have different cell walls</p> Signup and view all the answers

    What surrounds the cell membrane of bacteria?

    <p>Peptidoglycan</p> Signup and view all the answers

    What is the main difference between prokaryotes and eukaryotes?

    <p>Prokaryotes have a nucleus while eukaryotes do not</p> Signup and view all the answers

    What is a virus made of?

    <p>Proteins, nucleic acids, and sometimes lipids</p> Signup and view all the answers

    What is the main way that viruses reproduce?

    <p>By infecting living cells</p> Signup and view all the answers

    What is the difference between lytic and lysogenic infections?

    <p>Lytic infections involve immediate replication while lysogenic infections involve persistence in an inactive state</p> Signup and view all the answers

    How do viruses enter host cells?

    <p>By tricking the cell into taking them in</p> Signup and view all the answers

    What is one way that prokaryotes evolve?

    <p>Through binary fission</p> Signup and view all the answers

    What is conjugation in prokaryotes?

    <p>The exchange of genetic information between two bacterial cells through a bridge</p> Signup and view all the answers

    What is the role of nitrogen-fixing prokaryotes?

    <p>To convert nitrogen gas into useful forms</p> Signup and view all the answers

    What is the ecological role of decomposing prokaryotes?

    <p>To supply raw materials to the environment by breaking down dead organisms</p> Signup and view all the answers

    Which bacterium is responsible for producing yogurt?

    <p>Lactobacillus</p> Signup and view all the answers

    What is the microbiome?

    <p>A collection of prokaryotic genomes found in the human body</p> Signup and view all the answers

    What is the germ theory of disease?

    <p>The theory that bacteria and viruses can cause disease</p> Signup and view all the answers

    How do bacteria produce disease?

    <p>By destroying living cells or by releasing chemicals that upset homeostasis</p> Signup and view all the answers

    What is the mechanism by which HIV causes damage to the immune system?

    <p>HIV destroys the cells that normally fight infections</p> Signup and view all the answers

    How do vaccines help prevent viral diseases?

    <p>Vaccines stimulate the body's immune system to recognize and destroy viruses before they can cause disease</p> Signup and view all the answers

    What is the main difference between the way retroviruses like HIV and other viruses replicate?

    <p>Retroviruses make a DNA copy of themselves that inserts into the host's DNA, while other viruses do not</p> Signup and view all the answers

    What is the primary way in which viruses cause disease in the body?

    <p>Viruses attack and destroy certain cells in the body, causing the symptoms of the associated disease</p> Signup and view all the answers

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