Natural Selection

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Across
  1. 3. the process whereby organisms better adapted to their environment tend to survive and produce more offspring
  2. 5. a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information
  3. 9. a permanent change in the DNA sequence that makes up a gene
  4. 10. failing to serve an adjustive purpose
Down
  1. 1. a change which is a result or consequence of an action or other cause
  2. 2. was an English naturalist, geologist and biologist, widely known for his contributions to evolutionary biology
  3. 4. a characteristic or feature of an organism that enhances its survival or reproductive success in a particular environment
  4. 6. a person or thing that gives rise to an action, phenomenon, or condition
  5. 7. a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring
  6. 8. a distinctive attribute or aspect of something