Natural Selection

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Across
  1. 1. any difference in traits between individual organisms
  2. 5. a specific characteristic of an individual organism
  3. 7. a group of the same type of organisms living in the same area
  4. 8. everything (living and nonliving) that surrounds an organism
Down
  1. 2. a trait that makes it less likely that an individual will survive in a specific environment
  2. 3. the number of individuals with each trait in a population
  3. 4. a trait that makes it more likely that an individual will survive in a specific environment
  4. 6. a group of individuals born and living at about the same time