Unit 3 Worksheet

By: Krystal Holley

  1. The condition in which there are barriers to inbreeding between individuals of the same species separated by a portion of a mountain range is referred to as
  2. Minute Variationsd. Reproductive isolation
  3. Geographic Isolatione. Differential breeding capacity
  4. Infertility
  5. Which of the following statements best expresses the concept of gradualism?
  6. Minute changes in the genome of individuals eventually lead to the evolution of a population.
  7. The five conditions of Hardy-Weinberg equilibrium will prevent populations from evolving quickly.
  8. Evolution occurs in rapid bursts of change alternating with long periods in which species remain relatively unchanged.
  9. Profound change over the course of geologic history is the result of an accumulation of slow, continuous processes.
  10. When two species compete for a single resource in the same environment, one of them will gradually become extinct.
  11. A number of different phylogenies have been proposed by scientists over the decades. These are useful because they
  12. Predict which species will evolve most quickly in the future.
  13. Give us the information about which species evolved most quickly in the past.
  14. Allow us to determine when two populations that are similar evolved into separate species.
  15. Show that molecular resemblances among closely related organisms are rare.
  16. Allow us to study evolutionary relationships and evaluate the relatedness of living organisms.
  17. All of the following statements are part of Darwin’s theory of evolution EXCEPT:
  18. The most prominent contribution to evolution is made by the process of genetic mutation.
  19. Natural selection is the force behind evolution.
  20. Natural selection occurs as a result of the differing reproductive success of individuals in a population.
  21. The driving force of evolution is the adaptation of a population of organisms to their environment.
  22. More individuals are born in a population than will survive to reproduce.
  23. In a certain group of rabbits, the presence of yellow fur is the result of a homozygous recessive condition in the biochemical pathway producing hair pigment. If the frequency of the allele for this condition is 0.10, which of the following is closest to the frequency of the dominant allele in this population? (Assume that the population is in Hardy-Weinberg equilibrium)
  24. 0.01d. 0.90
  25. 0.20e. 1.0
  26. 0.40

Match the following to the sentence or phrase that’s most closely related to it.

(A)Artificial Selection(D) The founder effect

(B)Homology(E) The bottleneck effect

(C)Gene Pool

  1. Leads to new species with certain traits desired by humans
  2. Can result in a new island population with a limited gene pool
  3. One result of evolution from a common ancestor
  4. A result of drastic reduction in population size due to a sudden change in the environment
  5. Constitutes all of the alleles in a population
  1. All of the following are examples of prezygotic barriers EXCEPT:
  2. Habitat isolationd. Mechanical isolation
  3. Behavioral isolatione. Hybrid breakdown
  4. Temporal isolation
  5. Species that are found only in one particular geographic location are said to be
  6. Behaviorally evolvedd. Undergoing behavioral isolation
  7. Endemice. Undergoing mechanical isolation
  8. Speciated
  9. In a phylogeny of the animal kingdom, the wings of butterflies and the wings of birds would best be described as
  10. Shared derived charactersd. Analogous structures
  11. Shared primitive characterse. Clades
  12. Homologous structures
  13. Which of the following constitutes the smallest unit capable of evolution?
  14. An individuald. A clade
  15. A groupe. A community
  16. A population
  17. A marsupial living in Australia has evolved to eat tree leaves, be diurnal, and raise its young until they are of reproductive age. A grazing placental mammal has also evolved to eat tree leaves, be diurnal, and raise its young until they are of reproductive age. This is an example of which of the following types of evolution?
  18. Divergent evolutiond. Neutral evolution
  19. Species-specific evolutione. Sibling evolution
  20. Convergent evolution