Evolution and Natural Selection

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Across
  1. 6. asexual reproduction by a separation of the body into two new bodies
  2. 7. a normal process in which genetic material is rearranged as a cell is getting ready to divide
  3. 10. when two or more species reciprocally affect each other's evolution through the process of natural selection
  4. 12. a change or difference in the trait
  5. 15. a change or the process of change by which an organism or species becomes better suited to its environment
  6. 17. the process through which populations of living organisms adapt and change.
  7. 18. the movement of genes into or out of a population
  8. 19. a diverse domain of organisms whose cells have a nucleus
  9. 20. type of structural modification made to a part of the body
Down
  1. 1. the dying out or extermination of a species
  2. 2. the population number is dramatically decreased as a result of natural disasters such as earthquakes, floods, and other natural disasters
  3. 3. single-celled organisms belonging to the domains Bacteria and Archaea
  4. 4. a mode of reproduction in which a new offspring is produced by a single parent
  5. 5. occurs when bacteria change in response to the use of these medicines
  6. 8. something an animal does usually in response to some type of external stimulus in order to survive
  7. 9. the change in the frequency of an existing gene variant in a population due to random chance
  8. 11. A large group of single-cell microorganisms
  9. 13. a new population is established by a very small number of individuals from a larger population
  10. 14. type of reproduction that involves a complex life cycle in which a gamete with a single set of chromosomes combines with another gamete to produce a zygote
  11. 16. a variation of the same sequence of nucleotides at the same place on a long DNA molecule