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2025 Fall 2 ENVS 2126E for Melissa Driessnack (Online)
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Deduce why viruses are excluded from the ribosomal RNA—based tree of life.
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A hospital experiences an outbreak of an antibiotic-resistant bacterial infection that persists despite intense disinfection efforts. Upon investigation, scientists discover that the causative bacteria can survive harsh conditions by forming highly resistant spores. What bacterial genus is MOST likely responsible for this outbreak?
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The three-domain system classifies organisms into Bacteria, Archaea, and Eukarya based on genetic and structural differences. Which of the following features is unique to Archaea and distinguishes them from Bacteria?
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Match each characteristic to whether it describes a prokaryotic cell or a eukaryotic cell.
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Microorganisms found in the environment exhibit unique adaptations that allow them to survive in extreme conditions. Which of the following characteristics best explains why environmental microorganisms can thrive in diverse habitats such as deserts, deep-sea hydrothermal vents, and Arctic conditions?
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An oil spill has contaminated a freshwater ecosystem, and scientists are introducing specific microorganisms to help break down petroleum hydrocarbons. Which group of microorganisms is MOST likely to be used for this purpose?
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What is the significance of the discovery of archaeans in non-extreme environments for understanding microbial diversity?
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Match each domain of life with its common method(s) of genetic material transfer.
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Match each group with its defining feature or ecological role.
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Match each microbial group with its defining characteristic or role.
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