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- Why were Archaea originally thought to be simply unusual forms of Bacteria? What lines of evidence showed this domain to form a distinct branch on the tree of life?If you visit a lake in the middle of the Amazon and take water samples to analyze under a microscope from a nearby university that has good instrumentation and there you detect microorganisms that are not visible to the naked eye. What studies would you do to determine if they are bacteria, archaea, fungi or protozoa? Explain each type of analysis and how would you rule out members of each group? Write at least 3 paragraphsWhich domain, Archaea or Eukarya, is more closelyrelated to Bacteria? What evidence is there to justifyyour answer?
- In what ways are modern eukaryotes a combination of attributesof Bacteria and Archaea?Both bacteria and archaea used to be known as prokaryotes. True or false? What were the earliest forms of life on Earth? What was the energy source for the earliest form of life on earth? What are the earliest records of life on Earth? What is able to grow and thrive under conditions that would kill most other organisms (high/low pH, etc)? What are psychrophiles? Describe radioresistant prokaryotes and their habitat preferences. Who developed postulates to identify disease-causing organisms? What percent of bacteria and archaea cannot be cultured? Describe the viable-but-not-culturable state of prokaryotes. Describe planktonic prokaryotes. Why do biofilms form? What holds biofilms together? Structure of Prokaryotes Describe the nucleoid. Describe conjugation. What happens during binary fission? What are cell walls of prokaryotes primarily composed of? What structure of Archaea is different from other domains of life? What is the Bacteria division into two groups based on? Prokaryotic Metabolism Which macronutrient is…
- For instance, you encountered an unusual one-celled organism, what part/s of its cell would you use as reference to classify it under the three domains, specifically if this single-celled organism is an Archaean, Bacteria, or Protist?Which of the following archaea would most likely be found coexisting with bacteria?a) Nanoarchaeum b) Halobacterium c) Methanococcusd) Picrophilus e) SulfolobusArchaea are most closely related to which of the following major groups on the tree of life? a. Bacteria b. Eucarya c. Plantae d. None of the above