Natural Selection

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Across
  1. 2. change in the heritable characteristics of biological populations over generations
  2. 3. the dynamic evolutionary process that fits organisms to their environment
  3. 4. how a new kind of plant or animal species is created
  4. 8. occurs when species are diminished because of environmental forces
  5. 9. a random change to genetic material
  6. 10. the act or fact of living or continuing longer than another person or thing
  7. 12. only allows the selected traits to be passed through successive generations
  8. 17. biological process by which new individual organisms are produced
  9. 19. type of reproduction that does not involve the fusion of gametes
  10. 20. product of reproduction, produced by one or more parents.
Down
  1. 1. means that each generation has more offspring than can be supported by the environment
  2. 5. process whereby organisms better adapted to their environment tend to survive and produce more
  3. 6. provides living things with everything that is necessary to survive
  4. 7. best known for his contributions to the science of evolution
  5. 11. the change in the frequency of an existing gene variant in a population
  6. 13. a specific characteristic of an organism
  7. 14. an interaction between organisms or species in which both are harmed
  8. 15. difference in characteristics among the individuals of the same species
  9. 16. type of reproduction that involves two individuals
  10. 18. the passing of traits