Evolution Crossword Puzzle

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Across
  1. 4. Members of the group that later gave rise to the modern human being
  2. 6. A population of organisms with similar genes
  3. 9. Any change in the genes of a population of organisms over a period of time
  4. 14. Structures that evolved from the same ancestral body parts
  5. 15. When a population moves from its current habitat to a new one
  6. 16. Molecules that build and support body parts
  7. 18. Located in the chromosomes which consists of DNA
  8. 19. Is the development of new species
  9. 20. Similar structures but have different anatomies
  10. 21. Refered as the remains of an organism
Down
  1. 1. When a portion of a current population becomes isolated due to geographical barriers
  2. 2. occurs when there are no physical barriers preventing any members of a species from mating with another
  3. 3. Similar structures but have different anatomies
  4. 5. Structures that are inherited that are often smaller and
  5. 7. A drug used to treat infections caused by microorganisms and bacteria
  6. 8. the transfer of genetic material from one population to another
  7. 10. Is the early stages of development of an organism
  8. 11. A cell the develops into a reproductive cell
  9. 12. When a specific number of species are separated from the rest of the group
  10. 13. Species that are simillar to a zebra
  11. 17. Species that have vestigial bind leg bones