UNIT 7 VOCAB

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Across
  1. 8. Large scale change in species, formation of new species, or change over long periods of time (millions of years)
  2. 11. Evidence for evolution - when the same structures (ex bones) of different species are used in different ways - ex bones of a bat used to fly while bones of a horse used to run
  3. 12. Theory that explains how the first eukaryotic cells came from a symbiotic relationship between cooperating prokaryotic cells
  4. 14. Survival of the fittest - those organisms best suited to their environment survive and reproduce - proposed by Charles darwin
  5. 15. Evidence for/pattern of evolution - unrelated organisms will evolve to look similar due to similar environmental demands - ex shark and dolphin
  6. 16. Scientific classification that organizes living things into related categories - ex domain, kingdom, phylum, class, order, family, genus, species
  7. 17. Evidence for evolution - collection of fossilized remains that show changes in organisms through geologic time
  8. 18. Evidence for evolution - study of the early stages of development in a zygote/developing embryo
  9. 19. 2 part scientific naming system used to identify organisms
  10. 20. Pattern of evolution - when a species is no longer present on earth
Down
  1. 1. Pattern of evolution - when a small group of species diversify into many distinct forms or new species
  2. 2. Evidence for evolution - unused structures or organs in an organism that are remnants of ancestral species
  3. 3. Newly adapted/evolved characteristic, used to separate species/taxonomic groups on a cladogram
  4. 4. Small scale change in allele frequencies in a population
  5. 5. Pattern of evolution - when 2 species that closely interact evolve in response to one another/together over time
  6. 6. Fertilized egg, embryo of a new developing organism
  7. 7. Evidence for evolution - when different structures of an organism are used for similar functions - ex internal structure of butterfly wings vs bat wings vs bird wings
  8. 9. Evidence for evolution - random neutral mutations accumulate in the genome of a species and can be used to determine how long ago an evolutionary split between species occurred
  9. 10. Evidence for evolution - master control genes that determine placement of limbs/organs and development in organisms
  10. 13. Pattern of evolution - long periods of genetic equilibrium interrupted by periods of rapid change