Bacteria that were once treatable through the application of antibiotics are now resistant to them, causing severe infections in hospital patients. This is a case of Natural Selection where act as the selective agent.
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- A bacterial infection by M.tuberculosis causes the disease tuberculosis (TB). Explain the meaning of drug resistance in tuberculosis. Did natural selection occur in the drug resistant population. Explain!Bacteria that were once treatable through the application of antibiotics are now resistant to them, causing severe infections in hospital patients. This is a case of Natural Selection where __________act as the selective agent. A: humans B: Poisons C: environmental changes D: None of these answers are trueExplain the theory of evolution which was proposed byCharles Darwin.Use the fact that many bacterial strains arenow resistant to antibiotics as an example to support Darwin’stheory.Elaborate on this using bacteria to demonstrate theidea of “survival of the fittest”.
- Evolution _______ natural selection. a. is the same as c. is the goal of b. can oc d. explains the origin of life byWRITE ABOUT A THEME: Organization You have seenmany examples of how form fits function at all levels of thebiological hierarchy. However, we can imagine forms thatwould function better than some forms actually found innature. For example, if the wings of a bird were not formedfrom its forelimbs, such a hypothetical bird could fly yet alsohold objects with its forelimbs. In a short essay (100–150words), use the concept of “evolution as tinkering” to explainwhy there are limits to the functionality of forms in nature.As people use more of an antibiotic, the number of bacteria that are resistant to that antibiotic increase. Which statement describes a mechanism behind this trend? (A.) People’s bodies become more resistant to antibiotics after exposure to them (B.) Antibiotic molecules get weaker over time due to natural selection (C.) The antibiotic kills sensitive bacteria, and any bacteria resistant to it multiply to take their place (D.) Bacteria take up antibiotics and integrate them into their own DNA
- An important scientific theory that explains why organismsare at once so similar and so diverse is the theory of__________. This theory explains life’s diversity as having originated primarily through the process of_________.We are required to create a certain topic on our Evolutionary Biology class. And the topic is what i have choosen: "On the rapidity of antibiotic resistance evolution facilitated by a concentration gradient" QUESTION: As someone who had arleady an idea about Evolution, what are your thought in my title?Evolution isa. a belief.b. a scientific theory.c. a hypothesis.d. never observed in the modern world.
- How does natural selection explain the development of antibiotic resistant bacteria? See this video for help. http://ed.ted.com/lessons/how-antibiotics-become-resistant-over-time-kevin-wuHow might an understanding of evolutionary processes help a biologist doing research in (a) the development of a new antibiotic to replace one towhich bacteria have become resistant? (b) conservation of a specific plant in a rain forest?Can you think of a species on Earth todaythat may not be naturally selected?