Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 19, Problem 4DAA
Summary Introduction
To explain: The reason for the rise in CO2 at the far right of the graph.
Concept introduction: Carbon dioxide is a colorless gas that consists of a carbon atom, which is covalently double-bonded to two oxygen atoms. It is an important trace of the Earth’s atmosphere. The concentrations of the carbon dioxide and oxygen in the Earth’s atmosphere have varied during the early period to the present day.
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Chapter 19 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 19 - According to the big bang theory, _______. a. the...Ch. 19 - An abundance of _______ in Earth's early...Ch. 19 - The Changing Earth Studies of ancient rocks and...Ch. 19 - Prob. 2DAACh. 19 - Prob. 3DAACh. 19 - Prob. 4DAACh. 19 - Stanley Millers experiment demonstrated...Ch. 19 - According to one hypothesis, negatively charged...Ch. 19 - The prevalence of _______ in living organisms is...Ch. 19 - Prob. 6SQ
Ch. 19 - Among prokaryotes, only the cyanobacteria _______....Ch. 19 - The evolution of _____ resulted in an increase in...Ch. 19 - Bacteria that cause the disease typhus arc close...Ch. 19 - Infoldings of the plasma membrane into the...Ch. 19 - Prob. 11SQCh. 19 - A stromatolite is a structure __________. a....Ch. 19 - Prob. 13SQCh. 19 - Evidence that Mars __________ suggests that it may...Ch. 19 - Chronologically arrange the evolutionary events,...Ch. 19 - Researchers looking for fossils or the earliest...Ch. 19 - The astronomer Carl Sagan once said, "We are made...Ch. 19 - How did the evolution of oxygen-releasing...
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- Studying the decay of radioactive isotopes in dead organisms helps scientists to identify fossilized remains. The ratio of C-12 to C-14 in the atmosphere is 1 x 1012. The table shows this ratio inside the body of three organisms. Organism C12/C14 Ratio E 8 x 1012 F 1 x 1012 G 4 x 1012 What can most likely be concluded from the above information? Only Organism F is alive, and Organism G died before Organism E. Only Organism F is alive, and Organism E died before Organism G. Only Organism E is alive, and Organism G died before Organism F. Only Organism E is alive, and Organism F died before Organism G.arrow_forwardIn Stanley Miller’s experiment to recreate the early Earth conditions that gave rise to life, describe which part of the experimental instruments mimicked the ocean, the atmosphere, rain, and lightning.arrow_forward(A) What is extinction? How extinction is different from expiration? Explain. (B)List the five mass extinction episodes occurred in the history of Earth. Characterize the nature and extent of each extinction episode.arrow_forward
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- (e) If you collected a sample of water being ejected from Saturn's moon, Enceladus, you could examine it for isotopic signatures of life. Explain why this might not be definitive and describe one other way in which you could test a sample of this water for biological material.arrow_forwardDescribe how the sudden appearance of oxygen in the atmosphere about 2.5 billion years ago influenced the development of modern life-forms.arrow_forward“There might be life on Europa because it has an atmosphere that contains oxygen just like the Earth” Is this a strong analogy argument, and can be made stronger?arrow_forward
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