Alfred Russel Wallace and Charles Darwin argued that evolution by means of natural selection involves all of the following steps except: a. variation is present in all species b. species can produce more offspring than the environment can sustain c. all individuals within a species have equal chances to improve their fitness d. those individuals that are more fit will survive and reproduce in the greatest numbers e. over time, the species will evolve as the more fit individuals replace the less fit individuals

Alfred Russel Wallace and Charles Darwin argued that evolution by means of natural selection involves all of the following steps except: a. variation is present in all species b. species can produce more offspring than the environment can sustain c. all individuals within a species have equal chances to improve their fitness d. those individuals that are more fit will survive and reproduce in the greatest numbers e. over time, the species will evolve as the more fit individuals replace the less fit individuals

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter18: Introduction To Darwinian Evolution

Section: Chapter Questions

Problem 3TYU: Charles Darwin proposed that evolution could be explained by the differential reproductive success...

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Which of the following is not true of natural selection? (a) natural selection acts to preserve favorable traits and eliminate unfavorable traits (b) the offspring of individuals that are better adapted to the environment will make up a larger proportion of the next generation (c) natural selection directs the course of evolution by preserving the traits acquired during an individuals lifetime (d) natural selection acts on a populations genetic variability, which arises through mutation (e) natural selection may result in changes in allele frequencies in a population
Evolution is a theory, so it is still only tentative. Once it is really a meaningful scientific discipline, it will become a law. Select one: O True O False Darwin was meticulous in making several key observations that formed the foundation of his argument for his theory of evolution. Which of the following did Darwin NOT use in the formulation of his theory? Select one: O a. Variation exists in populations. b. There is a culling among offspring. c. Keystone species are infrequently found in disturbed communities. d. Traits are inherited across generations. e. Individuals reproduce in excess. A bison walks through a prairie, foraging on grass. As it walks, it kicks up insects which are then eaten by brown-headed cowbirds. Match the relationships below with their appropriate type of dyadic interaction. Bison Grass Choose... Choose... Bison |Insect Competition Bison Cowbird Mutualism Amensalism Commensalism Consumer-resource
Darwin observed that all organisms show variation. Is there any population of organisms that is an exception?
Which of the following best explains the role mutations play in natural selection?A. Most mutations are negative and result in the extinction of the entire speciesB. Mutations may appear for one or two generations, but they usually disappear quickly.C. If the environment changes, an existing organism develops a mutation that will help them to survive.D. Some mutations give individuals an advantage in their environment, allowing them to survive and reproduce.D is my answer is it correct?
Which of the following statements does NOT agree with the tenets of Darwin's theory of evolution by means of natural selection? O A. The phenotypes of individuals in a population will differ and, in some cases, these differences are the result of traits passed down from parent to offspring. B. Phenotypes become more common over time if individuals with those phenotypes have higher reproductive success. O C. The fitness of an individual with a particular phenotype is independent of the environmental conditions it experiences. O D. Resources limit the total number of individuals in a population.
In Darwin's theory of natural selection, which of the following is a source of evolution: a. Individuals with random mutations who die without reproducing. b. Individuals with random mutations who are able to reproduce. c. Individuals who do not vary from their progenitors. d. Intelligent and purposeful design.
Jean-Baptiste Lamarck was one of the first scientists to propose a method for evolutionary change. He suggested that an organism's body would adapt to its surrounding based upon the use or disuse of certain body parts. Why was this a mistaken idea? a As species become distinctly different from each other, so do their body forms, which is a result of their genes changing. b Individuals adapt and change, not populations. c Evolutionary change can only act upon traits that are inheritable, not traits that are acquired through an organism's lifetime. d When an organism migrates to a new environment or the environment it currently lives in changes, the organism must adapt, or it will not survive.
Which of the following statements about natural selection is a misconception? a.Most species don't produce more offspring than the environment can support b.Natural selection acts on heritable variations in a population c.Natural selection involves differential reproductive success d.Natural selection occurs as a result of competition among individuals in a population e.In natural selection, traits that are favoured depend on current environmental conditions
Which of the following is correct regarding the process ofevolutionary change?a. an adapted individual is the one that survives and passes on itsgenes to offspring.b. changes in phenotype are passed on by way of the genotype tothe next generation.c. organisms are able to bring about a change in their phenotype.d. evolution is striving toward particular traits.e. All of these are correct.
Natural Selection Fill in the blanks to explain Darwin's theory of Natural Selection using these words: DNA, survive, variation, DNA, reproduce 1. Individuals in a species show 2. This is because of differences in their 3. Individuals with characteristics which suit the environment are more likely to and 4. So the from these individuals is passed onto the next generation.
Which of the following statements is not true about the concept of natural selection? Group of answer choices A-Geographical isolation contributes to the formation of new species as individuals begin to adapt to different environments B-Natural selection explains the increase in the yield of kernels per corn plant over the last several thousand years C-Infers that later generations may be distinct from ancestral ones, or a new species can appear D-Selective pressures cause distinct species to develop E-Suggests that over long periods of geological time, successful variations accumulate in a population
In Darwin's theory of natural selection, which of the following is a source of evolution: a.Individuals who do not vary from their progenitors. b.Intelligent and purposeful design. c.Individuals with random mutations who are able to reproduce. d.Individuals with random mutations who die without reproducing.