Biology: Concepts and Investment (Comprehensive Instructor's)
4th Edition
ISBN: 9781259869655
Author: Hoefnagels
Publisher: MCG
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Chapter 17, Problem 8WIO
Why did the discovery of archaea generate interest in searching for cells on other planets?
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Why did the discovery of archaea generate interest in searching for cells on other planets?
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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?
Chapter 17 Solutions
Biology: Concepts and Investment (Comprehensive Instructor's)
Ch. 17.1 - What are two domains that contain prokaryotes?Ch. 17.1 - Prob. 2MCCh. 17.1 - Prob. 3MCCh. 17.1 - Why are most species of prokaryotes little...Ch. 17.2 - Prob. 1MCCh. 17.2 - Prob. 2MCCh. 17.2 - What does the Gram stain reveal about a cell?Ch. 17.2 - Prob. 4MCCh. 17.2 - How are molecular data changing microbial...Ch. 17.2 - Prob. 6MC
Ch. 17.3 - Prob. 1MCCh. 17.3 - Prob. 2MCCh. 17.3 - Prob. 3MCCh. 17.4 - Prob. 1MCCh. 17.4 - Prob. 2MCCh. 17.4 - What adaptations enable pathogenic bacteria to...Ch. 17.4 - What are some practical uses of bacteria and...Ch. 17.5 - Prob. 1MCCh. 17.5 - Prob. 2MCCh. 17 - A prokaryotic cell is one that a. lacks DNA. b....Ch. 17 - Which of these is a distinguishing characteristic...Ch. 17 - What feature distinguishes the cell walls of...Ch. 17 - What type of organism may use inorganic chemicals...Ch. 17 - Prob. 5MCQCh. 17 - Prob. 6MCQCh. 17 - Prob. 7MCQCh. 17 - Prob. 8MCQCh. 17 - Explain why the antibiotics penicillin and...Ch. 17 - Why do some microbiologists disagree with...Ch. 17 - Give five examples that illustrate how bacteria...Ch. 17 - If you were developing a new "broad-spectrum"...Ch. 17 - Describe your own metabolic classification: Are...Ch. 17 - A prokaryote with which type of metabolism would...Ch. 17 - Ernst Mayr defined a biological species as a...Ch. 17 - Why did the discovery of archaea generate interest...Ch. 17 - In an article in Nature magazine, Sean Nee wrote...Ch. 17 - Ecosystems rely on nitrogen -fixing bacteria,...Ch. 17 - Prob. 11WIOCh. 17 - Prob. 12WIOCh. 17 - Prob. 13WIOCh. 17 - Prob. 14WIOCh. 17 - Prob. 15WIOCh. 17 - Mycobacterium tuberculosis causes most cases of...Ch. 17 - Prob. 1PITCh. 17 - Add autotrophs, heterotrophs, phototrophs, and...Ch. 17 - Prob. 3PITCh. 17 - Create a new concept map that includes the...Ch. 17 - Prob. 4PITCh. 17 - Prob. 6PIT
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- How do bacteria and archaea differ from each other? Contrast prokaryotic cells with eukaryotic cells.arrow_forwardWhy do microbiologists believe that the Archaea were the type of microbes from which all other life descended?arrow_forwardWhat types of environments are inhabited by archaea? Why are methanogens important?arrow_forward
- Which statement best explains why a third domain, Archaea, was added to the original two domains of Bacteria and Eukarya?arrow_forwardWhy would archaea that grow in extreme environments be more intensively studied than those that do not?arrow_forwardWhy were cyanobacteria so important in the evolution of life on Earth and why are microorganisms important to humans?arrow_forward
- Despite many interesting characteristics and features observed in Archaea, why is there not much study about these organisms?arrow_forwardWhat features are similar between Bacteria and Archaea?arrow_forwardA colleague proposes that the Archaea may be the oldest life form currently inhabiting Earth. Do you agree? Explain.arrow_forward
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