EBK BIOLOGY
5th Edition
ISBN: 8220100667978
Author: Maier
Publisher: PEARSON
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Chapter 12, Problem 5LTB
Summary Introduction
Introduction:
Two major mechanisms which govern the evolution are genetic drift and natural selection. Natural selection can be defined as the process by which genetic characters increase the chances of survival and reproduction of an organism.
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- Charles Darwin’s claim, that the species level of classification is just as arbitrary as that of any other taxonomic level, is supported by all of the following observational failures except: the inability of a sexually-reproducing eukaryotic species to interbreed with a different species the inability of a cloning species lacking biparental reproduction to interbreed with a different species the inability of an asexual eukaryotic species to interbreed with a different species the inability of an extinct species (like a dinosaur) to interbreed with a different species the inability of a prokaryotic species to interbreed with a different species.arrow_forwardCharles Darwin’s claim, that the species level of classification is just as arbitrary as that of any other taxonomic level, is supported by all of the following observational failures except: the inability of a cloning species lacking biparental reproduction to interbreed with a different species the inability of an asexual eukaryotic species to interbreed with a different species the inability of a sexually-reproducing eukaryotic species to interbreed with a different species the inability of a prokaryotic species to interbreed with a different species the inability of an extinct species (like a dinosaur) to interbreed with a different speciesarrow_forwardEvolution is a process of___ in a population through___ variation over___ Evolution involves___ and___.arrow_forward
- ln three to five sentences, construct an argument for the claim that natural selection leads to evolution. Provide evidence for this claim, and be sure to explain how an organism shows the four parts of the process of natural selection. You may use any organism with the exception of bacteria and antibiotic resistance.arrow_forwardFind two examples in the media (internet, TV, etc.) of someone (organization, etc.) erroneously portraying Darwinian evolution using a Lamarckian approach. For both, provide the following: Its origin How are they misrepresenting Darwinian evolution? How do you know they're talking about Lamarckian evolution, not Darwinian?arrow_forwardWhich of the following is NOT one of the four factors that contributes to evolution by producing and redistributing genetic variation (or contributes to microevolution as calculated by the Hardy-Weinberg equilibrium)? Group of answer choices Acclimatization Gene flow Genetic drift Recombination Mutationarrow_forward
- ONE OF THE STATEMENTS OF EVOLUTION THEORY OF CH. DARVIN IS Select one: adaptations of organisms have relative nature all species are adapted to different conditions of existence adaptations of organisms have absolute nature all species originated by means artificial selectionarrow_forwardWhich of the following statements about the history of evolutionary biology is correct? -The Modern Synthesis (or Evolutionary Synthesis) is a period of time in the early 20th century when the Mendelian genetics was integrated into the evolutionary biology. -There are two main parts in the book On the Origin of Species, published by Darwin in 1859: the first is that biological evolution does occur and species arise through descent from common ancestor, with modification, and the second is that natural selection is the main driving force for the process. -The most original contribution by Darwin is the theory of evolution by natural selection. -Modern radiometric dating has pretty much settled the question on the age of the earth. The conclusion is that the earth is old enough for the evolutionary process proposed by Darwin to have taken place. -All of the abovearrow_forwardThe most important feature that enables a gene to act as a molecular clock is Group of answer choices: a recent origin by a gene duplication event a large number of base pairs in the genome being acted upon by natural selection a reliable average rate of mutationarrow_forward
- What causes variation among a population of living things and How can variation in one generation influence the next generation? Is the variation in a population will be examined as the “raw material” upon which natural selection acts. Why are there so many different kinds of living things? Comparing species that exist today reveals a lot about their relationships to one another and provides evidence of common origins. This session explores the theory of evolution: change in species over time.arrow_forwardIn a small group of people living in a remote area, there is a high incidence of "blue skin", a condition that results from a variation in the structure of hemoglobin. All of the "blue-skinned" residents can trace their ancestry to one couple, who were among the original settlers of this region. The unusually high frequency of "blue skin" in the area is an example of [ Select ] [Select] mutation natural selection sexual selection « Previous Next heterozygote advantage founder effect checkedat 9:39pm Submarrow_forwardBriefly discuss the differences in how a selectionist (one that believes that Natural Selection is a strong evolutionary force) and a neutralist (one that believes that genetic drift is a strong evolutionary force) views the following: molecular clock, evolution of coding sequences, evolution of "pseudogenes".arrow_forward
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