Evolution and Natural Selection

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Across
  1. 3. A single-cell organism whose cell lacks mitochondria
  2. 6. the study of the embryo and its development
  3. 7. when a new colony is started by members of the original population
  4. 9. When a male gamete and a female gamete are involved in reproduction
  5. 10. Any cell or organism that possesses a clearly defined nucleus
  6. 12. Single celled organism
  7. 15. A genetic sequence on a specific chromosome
  8. 16. competition for access to mates
  9. 17. A change in allele frequencies in a population
  10. 18. The way a new species is created
  11. 19. changes in the genetic material of a population over time
Down
  1. 1. Offspring is produced by only one parent
  2. 2. the process of one cell dividing into two
  3. 4. the influence of closely related species on each other in evolution
  4. 5. The increased reproduction of organisms with genes that improve survival
  5. 8. The variation of of traits in a population
  6. 11. an infectious microbe
  7. 13. the complete disappearance of a species
  8. 14. the movement of genetic material to a population
  9. 15. An adjustment to the environment to survive