Biology: Concepts and Investigations - With Access
4th Edition
ISBN: 9781260053777
Author: Hoefnagels
Publisher: MCG
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Chapter 17, Problem 1PIT
Summary Introduction
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Evolution and viruses from the figure given in ‘Survey the Landscape’ to the concept map given in Fig.17.18: “Pull it Together: Bacteria and Archaea”, of the textbook in two ways each.
Concept introduction:
Prokaryotes are the cells that do not have a defined nucleus and have other primitive features. They lack membrane-bound organelles and have circular extra-chromosomal DNA called plasmids. Many of them are found in extreme environments like hot water springs, arid deserts and more. They contain two domains: Bacteria and Archaea.
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Chapter 17 Solutions
Biology: Concepts and Investigations - With Access
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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- Trace the evolutionary origin of viruses according to current hypotheses and describe research regarding the evolution of polydnaviruses.arrow_forwardWhich statement is true? a. A virion contains DNA and RNA. b. Viruses are acellular. c. Viruses replicate outside of the cell. d. Most viruses are easily visualized with a light microscope.arrow_forwardDescribe the four morphological classes of viruses, then diagram and give example of each.arrow_forward
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- Upon learning the distinguishing characteristics of living organisms, would you consider viruses to be exhibiting the features of living organisms? Why or why not? Explain what other principles support the characteristics of life.arrow_forwardDraw a diagram illustrating how retroviruses, such as HIV, make copies of themselves.arrow_forwardViruses cannot reproduce on their own, without the help of a living cell. Explain the basics of how viruses make more viruses.arrow_forward
- Viruses are very unique when it comes to their infection mechanism?arrow_forwardBecause viruses lack some of the traits seen in all living things, many scientists do not believe viruses to be genuinely "alive." Using a few characteristics of live organisms as examples, explain why viruses may not be truly "alive."arrow_forwardWRITE ABOUT A THEME: ORGANIZATION While virusesare considered by most scientists to be nonliving, they doshow some characteristics of life, including the correlationof structure and function. In a short essay (100–150 words),discuss how the structure of a virus correlates with its function.arrow_forward
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