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, Problem 9TYU
FOCUS ON EVOLUTION
In patients infected with nonresistant strains of the tuberculosis bacterium, antibiotics can relieve symptoms in a few weeks. However, it takes much longer to halt the infection, and patients may discontinue treatment while bacteria are still present. How might this result in the evolution of drug-resistant pathogens?
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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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- What is the relationship between pandemics and evolution? Use the word: evolution DONT COPY FROM GOOGLE!arrow_forwardAcquisition of antibiotic resistance is driven by bacterial exposure to antimicrobial agents (including antibiotics). This is a good example of natural selection; only the most fit (i.e., those with mutations conferring resistance, survive to reproduce and fill the niche with resistance organisms). Discuss two methods to prevent antimicrobial resistance within your community, but NOT a healthcare setting.arrow_forwardEvolutionary changes of antibiotic resistant bacteria increase the ability of a species to survive and reproduce under any circumstances (True or false) give explaination for answer?arrow_forward
- Antibiotics are a form of medicine used to treat bacterial infections. However, new bacteria are evolving that are resistant to antibiotics. When someone uses antibiotics, they often contribute in a small way to an increase in the number of bacteria that are resistant to antibiotics. How would an economist classify antibiotic use? Public health officials are concerned with the overuse of antibiotics, which leads to bacteria being resistant to antibiotics. What is a solution to this problem?arrow_forwardWhat is the relationship between pandemics and evolution? Use the word: mutationarrow_forwardEvolution is one of the major unifying concepts of modem biology. Explain the mechanisms that lead to evolutionary change. Describe how scientists use each of the following as evidence for evolution. • Bacterial resistance to antibiotics • Comparative biochemistry • The fossil records (1000 words min)arrow_forward
- What is the relationship between pandemics and evolution? Use the word: mutation DONT COPY FROM GOOGLEarrow_forwardThe spread of antibiotic resistance genes is an example of evolution. Explain how this is evolution using the framework of natural selection. Make sure you include what genes are evolving and what is the selective agent or selective pressure.arrow_forwardMatch diseases to information about them: COVID 1. Observed in fossils of dinosaurs and early mammals Ebola 2. Signs of infection in 2.2 million year old Australopithecus Malaria 3. Shifted into humans around the 1940s Brucellosis 4. Zoonotic transmission from bats HIV 5. Evolved multiple times to infect humans, from primate sources Cholera 6. Evolved reduced virulence after sanitation improvements Tumors 7. Evolved increased transmissibilityarrow_forward
- Describe how scientists use each of the following as evidence for evolution; a. Bacterial resistance to antibiotics b. Comparative biochemistry c. The fossil recordsarrow_forwardDisease-causing parasites and bacteria differ in that _____ Select one: a. parasites only infect one host, bacteria need two b. parasites are eukaryotes and bacteria are prokaryotes c. parasites are multicellular and bacteria are single-celled d. vaccines work for parasites, but bacteria evolve too slowlyarrow_forwardWhich of the following factors in today’s world make it dif-ficult to keep disease-causing microorganisms in check from ahealth point of view?(a) Lack of a balanced distribution of wealth(b) Increased and quick world travel(c) Encroachment of humans into virgin jungles(d) Antibiotic-resistant bacteria(e) All of the abovearrow_forward
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