Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 24.1, Problem 3CC
Summary Introduction
To describe:
The evidence of the formation of fossils in early prokaryotes and how they altered Earth’s atmosphere.
Concept introduction:
The evidence for the formation of fossils of early prokaryotes was found in Australia and South Africa. The fossils of the micro-organisms resembled in morphology with the Cyanobacteria containing the green pigment chlorophyll. The earth’s atmosphere was altered as these organisms consumed carbon dioxide and liberated oxygen in the atmosphere leading to the increase in the concentration of this gas.
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Chapter 24 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 24.1 - What hypothesis did Miller test in his classic...Ch. 24.1 - How would the appearance of protocells have...Ch. 24.1 - Prob. 3CCCh. 24.1 - Prob. 4CCCh. 24.2 - Contrast the cellular and DNA structures of...Ch. 24.2 - Distinguish between the four major modes of...Ch. 24.2 - Prob. 3CCCh. 24.2 - Prob. 4CCCh. 24.3 - Although rare on a per gene basis, new mutations...Ch. 24.3 - Distinguish between the three mechanisms by which...
Ch. 24.3 - In a rapidly changing environment, which bacterial...Ch. 24.3 - WHAT IF? If a nonpathogenic bacterium were to...Ch. 24.4 - Explain how molecular systematics and metagenomics...Ch. 24.4 - WHAT IF? What would the discovery of a bacterial...Ch. 24.5 - Explain how prokaryotes, though small, can be...Ch. 24.5 - Prob. 2CCCh. 24.5 - Prob. 3CCCh. 24.5 - Prob. 4CCCh. 24 - Which of the following steps has not yet been...Ch. 24 - Fossilized stromatolites A. more than 2.8 billion...Ch. 24 - Prob. 3TYUCh. 24 - Photoautotrophs use A. light as an energy source...Ch. 24 - Which of the following statements is not true? A....Ch. 24 - Prob. 6TYUCh. 24 - Plantlike photosynthesis that releases O2 occurs...Ch. 24 - SCIENTIFIC INQUIRY INTERPRET THE DATA The...Ch. 24 - FOCUS ON EVOLUTION In patients infected with...Ch. 24 - FOCUS ON ENERGY AND MATTER In a short essay (about...Ch. 24 - Prob. 11TYU
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- Investigate and describe how prokaryotic cells photosynthesize without having chloroplasts. What impact did these organisms have on the geological and evolutionary history of the earth?arrow_forwardDiscuss the length of time prokaryotes were the dominant organisms living on earth.arrow_forwardDescribe the “chemical fingerprint of the archaean fossil first discovered in the Messel oil shale of Germany.arrow_forward
- Describe how scientists have tested the hypothesis that simpleorganic molecules could have formed on the early Eartharrow_forwardPresent two hypotheses for the origin of the eukaryoticcell.arrow_forwardDiscuss the Endosymbiotic Theory. Do you think it is a strong explanation on how the eukaryotes emerged on Earth?arrow_forward
- Describe the specimen and explain how the presence of fossil bacteria supports the idea that the Earth’s atmosphere was evolving?arrow_forwardList several ways that prokaryotes have influenced evolutionarrow_forwardA colleague proposes that the Archaea may be the oldest life form currently inhabiting Earth. Do you agree? Explain.arrow_forward
- Please answer fast List 5 characteristics that distinguish domain Eukarya from the 2 prokaryotic domains (Bacteria and Archea). Describe and compare the 2 major models of eukaryotic origins: autogenesis and endosymbiosis.arrow_forwardDescribe the Comparison of Three Cellular Domains bacteria, archaea and eukarya.arrow_forwardIn what way was the evolution of eukaryotic cells linked to the increase in the oxygen concentration in the atmosphere that occurred during the Precambrian?arrow_forward
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