Evolution Review

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Across
  1. 3. as skull size increases, brain size _______
  2. 5. theory of evolution called periodic catastrophes
  3. 6. small genetic changes occur slowly over time
  4. 10. disproved Lamarck, said changes must occur in reproductive cells to be passed on
  5. 11. differences between individual members of a population
  6. 12. structure that is inherited, but reduced in size and often unused
  7. 15. habitat and role an organism plays in its environment
  8. 16. comparative ________ is evidence for evolution by looking at early developmental stages
  9. 20. studied human population and said that when population exceeds resources, disaster limits growth of population
  10. 21. _______ and Eldridge credited with the theory of punctuated equilibrium
  11. 22. in Darwin's theory of natural selection, he said individuals surviving are those with favorable _________
  12. 24. type of evidence for evolution which involves looking at the genetic codes of organisms
  13. 26. Darwin's theory of evolution
  14. 28. organisms of the same species can mate and produce ___ offspring
  15. 31. change over time
  16. 32. variety and abundance of life in an area
  17. 33. theory that populations have long periods of stability, then brief periods of rapid change, called ____ equilibrium
  18. 35. similar structures that have a different function, but the species share a common ancestor.
  19. 36. created a hypothesis that life began in earth's early oceans, the primordial soup
  20. 37. when humans control breeding of organisms it is called ____ selection
  21. 38. movement of individuals can disrupt the genetic equilibrium
Down
  1. 1. disproved theory of spontaneous generation, said new life comes from life already here
  2. 2. evolution of one or more species from a single ancestor species
  3. 4. structures that have similar functions, but different ancestors
  4. 7. inherited trait that increases a population's chance of survival
  5. 8. adaptive _______ is when a species evolves into several different forms due to moving to a different environment
  6. 9. said organisms constantly improving themselves, use and disuse and inheritance of acquired characteristics
  7. 13. random change in allele frequency, happens in small populations due to chance
  8. 14. one reason why there are gaps in fossil record, because most organisms never get _______
  9. 17. 2 species evolve in response to changes in each other over time
  10. 18. type of evolution that produces similar structures in organisms located in different regions
  11. 19. preserved remains or imprints of ancient organisms
  12. 23. Darwin observed that each finch had a different niche and were actually different _________
  13. 25. theory that mitochondria and chloroplasts were once free living cells
  14. 27. ___ and Miller tried to support Oparin's hypothesis, but formed amino acids (not life)
  15. 29. Darwin said gradual changes in earth influence changes in organisms, based on work of Charles _____
  16. 30. change in the sequence of DNA
  17. 34. family tree showing how organisms are related