WHAT IS LIFE ACHIEVE ACCESS ONLY >I<
5th Edition
ISBN: 9781319487317
Author: PHELAN
Publisher: INTER MAC
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Chapter 15, Problem 7MC
Summary Introduction
Introduction:
Archaea constitute a domain of single celled organisms. These microbes are prokaryotes which do not have a definite nucleus. They are often called as “extremophiles” because they can easily survive in extreme environment such as sea vents releasing sulfide rich gases, hot springs, or boiling mud around volcanoes.
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Which of the following is not part of Koch’s Postulates?
a. A specific microorganism must be present in a disease
b. The organism must be isolated into pure culture
c. Living organisms spring forth from non-living materials
d. All of the choices are part of Koch’s Postulates
Bacteria are similar to archaea in that theya. arose through endosymbiosis.b. are multicellular.c. live in extreme environments.d. are prokaryotes.
5) The biological species concept cannot be applied to bacteria because
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c.they die
d.they are all pathogens
Chapter 15 Solutions
WHAT IS LIFE ACHIEVE ACCESS ONLY >I<
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- How do Gram-negative bacteria differ from Gram-positivebacteria?a. They are not pathogenic.b. Their peptidoglycan cell wall is thinner.c. Gram-negative bacteria cannot be Gram stained.d. They possess a single plasma membrane.e. Gram-negative bacteria do not photosynthesize.arrow_forwardWhich of the following statements correctly describes exotoxins and endotoxins produced by various bacteria? A. endotoxins are secreted into the environment while the bacteria are still alive B. exotoxins are secreted into the environment while the bacteria are still alive C. exotoxins are only released into the environment when the bacteria die and their cell walls break down D. exotoxins are components of the outer membrane of the bacteria that produce themarrow_forwardWhich of the following statements are TRUE about organisms in the Domain Bacteria? I. Consist of bacteria and cyanobacteria II. Some are photoautotrophs III. Genetic material is a single stranded DNA IV. Organelles are not presentarrow_forward
- Which of these statements is true? a. An antibiotic is any substance produced by a organism that is antagonistic to the growth of prokaryotes. b. An antibiotic is any substance produced by a prokaryote that is antagonistic to the growth of other viruses. c. An antibiotic is any substance produced by a prokaryote that is antagonistic to the growth of eukaryotic cells. d. An antibiotic is any substance produced by a prokaryote that prevents growth of the same prokaryote.arrow_forwardBacteria that can survive in extreme environments are called: a-Anaerobes b-Saprophytes c-Aerobes d-Archaebacteriaarrow_forwardWhat part of an animal USUALLY do not have microbes? A. Teeth B.Genitalia C. Lungs D. Gastrointestinal tractarrow_forward
- Which of the following statements is correct? Please select all that apply. Select one or more: a. Parasitism between bacteria and archaea caused complex interactions that eventually gave rise to eukarya. b. While bacteria are prokaryotes, archaea are neither prokaryotic, nor eukaryotic but classified as a 3rd cell type. c. Prokaryotes are classified further based on whether they are unicellular or multicellular organisms. d. The molecular biologies of archaea and eukarya show a greater proportion of similarities than those of eukarya and bacteria. e. Prokaryotes could not make photosynthesis until chloroplast endosymbiosis evolution. f. The last universal common ancestor most likely had a primitive prokaryotic cell organization. g. Endosymbiosis of chloroplast precedes that of mitochondria.arrow_forwardIf all prokaryotes on Earth suddenly vanished, which of the following would be the most likely and most direct result? O a. There would be no more pathogens on Earth. O b. Human populations would thrive in the absence of disease. O c. Bacteriophage numbers would dramatically increase. Od. The recycling of nutrients would be greatly reduced, at least initially. Next pagearrow_forwardRecently, a microbe that is able to digest cellulose was discovered in a hot spring with an average temperature of 95°C. This microbe most likely belongs to which of the following groups? A. Archaea B. Proteobacteria C. Cyanobacteria D. Spirochetesarrow_forward
- Which of the following statements is true? A. Archaea and bacteria have identical membrane lipids. B. The cell walls of archaea lack peptidoglycan. C. Prokaryotes have low levels of genetic diversity. D. No archaea are capable of using CO2 to oxidize H2 releasing methane.arrow_forward.A spherical-shaped prokaryotic cell is called aa. coccus.b. spirochete.c. bacillus.d. None of these are correctarrow_forwardArchaea are distinct from bacteria becausea. some archaea form methane.b. each have different rRNA sequences.c. archaea do not have peptidoglycan cell walls.d. archaea are more closely related to eukaryotes.e. All of these are correct.arrow_forward
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