Vocabulary

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Across
  1. 3. few survivors are left to reproduce after a disaster
  2. 4. the process in which individuals with certain heritable traits survive and reproduce at a higher rate that other individuals
  3. 5. one of the three domains
  4. 12. when chance events cause changes in the frequency of traits in a population
  5. 15. when two populations become separated by land or water
  6. 20. when an animal is repeatedly given a stimulus that is not associated with any punishment or reward
  7. 23. developed the classification system we use today, based on the structural similarities of organisms
  8. 25. structures that have the same origin but have different functions
  9. 27. learning by association
  10. 30. the formation of a new species in evolution
  11. 32. when the average phenotype for a trait in a population shifts in one direction
  12. 34. when changes in population happens gradually
  13. 35. unrelated organisms evolve similar structures
  14. 39. inherited traits that ensure survival and reproductive success of the organism and are passed on to the offspring
Down
  1. 1. a seasonal state in which the temperature of an animal drops substantially and O2 consumption decreases
  2. 2. all living organisms use the same genetic code
  3. 6. when species mate at different times of the day or year
  4. 7. a two-part naming system consisting of the genus and species for an organism
  5. 8. differences in courtship reproductively isolates two populations
  6. 9. looks similar on the outside and have similar functions, but have a different structure on the inside
  7. 10. when the average phenotype for a trait has an advantage and members of the population shift towards this average
  8. 11. when change in a population comes in a spurt
  9. 13. grouping of like organisms and the assignment of a universally accepted name to each
  10. 14. when the average phenotype for a trait has a disadvantage and members of the population shift away from this average
  11. 16. reproduction that only requires one organism and the offspring is identical to the parent
  12. 17. physical features that help them survive
  13. 18. the evolution of many diverse and adapted species from a common ancestor
  14. 19. things organisms do to survive
  15. 21. an animal forms a social attachment to another, usually inanimate, object
  16. 22. instinctive and seasonal movement of animals
  17. 24. diagram depicting evolutionary relationships among groups
  18. 26. grouping of organisms into categories that represent lines of evolutionary descent
  19. 28. daily state of reduced metabolism when animals live in periods of intense heat
  20. 29. movement of genes from one population to another that will change the frequency of traits
  21. 31. a “leftover” organ or structure that serves no useful function
  22. 33. a group of organisms
  23. 35. a group of organisms that evolved from a common ancestor
  24. 36. one of the six kingdoms
  25. 37. some individuals of a population colonize a new habitat
  26. 38. when two species evolve together in response to changes in each other