BIO 182 Exam Questions with Correct Answers

BIO 182 Exam Questions with Correct Answers The similarity of bone structure in the forelimbs of many vertebrates is an example of A) analogy B) homology C) digitality D) convergence - Answer-B) homology Which of the following provides evidence that modern species have evolved from prior species? A) the fossil record B) the anatomical record C) the molecular record D) All of the above - Answer-D) All of the above An example of convergent evolution is: A) Australian marsupials and placental mammals B) The flippers in fish, penguins and dolphins C) The wings in birds, bats and insects D) All of the above - Answer-D) All of the above Which of the following would NOT be considered part of the process of natural selection? A) Many of the variations among individuals in a population are heritable. B) More offspring are produced than are able to survive and reproduce. C) Many adaptive traits may be acquired during an individual's lifetime, helping that individual to evolve. D) Individuals with traits best adapted to the environment are likely to leave more offspring. - Answer-C) Many adaptive traits may be acquired during an individual's lifetime, helping that individual to evolve. In what type of environment would you expect dark colored moths to be common in the population? A) in an unpolluted forest B) in a polluted forest C) in a formerly polluted forest that has been cleaned up D) none of the above; dark colored moths are never common - Answer-B) in a polluted forest If pollution is cleaned up, what should happen to the moth population living in the woods? A) color patterns shouldn't change B) individual dark-colored moths should change to light-colored C) individual light-colored moths should change to dark-colored D) dark-colored moths should become more common in the population E) light-colored moths should become more common in the population - Answer-E) light-colored moths should become more common in the population Human-caused changes in the environment can affect natural selection. A) True B) False - Answer-A) True Which of the following is an example of artificial selection? A) different breeds of dogs B) antibiotic resistant bacteria C) dark peppered moths in polluted areas D) All of the above - Answer-A) different breeds of dogs The remnants of pelvic and leg bones in a snake A) are vestigial structures B) are homologous structures C) resulted from artificial selection D) none of the above - Answer-A) are vestigial structures Which embryos have gill slits and a tail in the early stages of development? A) Fish B) Frog C) Bird D) Human E) All of the above - Answer-E) All of the above Which statement relates to the evolution of disease-causing bacteria like TB? A) If antibiotics aren't taken as prescribed, some bacteria can survive. B) Bacteria evolve through the process of natural selection. C) When antibiotics are widely used, bacteria with genes that make them resistant to antibiotics increase in the population over time. D) All of the above are true - Answer-D) All of the above are true Which of the following ideas is commong to both Darwin's and Lamarck's theories of evolution? A) adaptation results from differential reproductive success B) evolution drives organisms to greater and greater complexity C) evolutionary adaptation results from interactions between organisms and their environments D) adaptation results from the use and disuse of anatomical structures - Answer-C) evolutionary adaptation results from interactions between organisms and their environments Using the molecular record to determine evolutionary relationships is based on the assumption that A) DNA sequences do not change over time B) DNA sequences change over time D) evolutionary changes occur in phenotypes (physical appearances) but not in genotypes (based on DNA). E) all mutations are harmful - Answer-B) DNA sequences change over time Which of the following statements related to natural selection is true? A) Variations among individuals in a population are not heritable. B) All offspring are equally likely to survive and reproduce. C) Many adaptive traits may be acquired during an individual's lifetime, helping that individual to evolve. D) Individuals with traits best adapted to the environment are likely to leave more offspring. E) All of the above - Answer-D) Individuals with traits best adapted to the environment are likely to leave more offspring. A theory in scientific terms is: A) just a guess B) a concept widely supported by experimental evidence C) a proposed answer to a question which will be supported or rejected by experimental evidence. - Answer-B) a concept widely supported by experimental evidence After World War II, DDT was regularly used to control insect pest populations. The use of DDT kept the numbers of malaria-carrying mosquitoes low for a while, but resistant mosquitoes began to appear quite quickly. Currently, most mosquito populations worldwide are DDT resistant. This is an example of: A) artificial selection B) mutation C) evolution - Answer-C) evolution Which of the following statements is false? A) The direction of natural selection can change B) Natural selection is a process without a planned outcome C) A phenotype that is beneficial in one environment, may be detrimental in another D) Natural selection operates at the level of individuals - Answer-D) Natural selection operates at the level of individuals