Natural Selection

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Across
  1. 3. a characteristic that all members of a species have
  2. 7. an animal that hunts and kills other animals for food
  3. 9. a related organism from a previous generation
  4. 10. a group of the same type of organism living in the same area
  5. 11. the number of individuals with each trait in a population
  6. 12. any difference in traits between individual organisms
Down
  1. 1. a group of individuals born and living at about the same time
  2. 2. a graph that uses bars to show how characteristics or values are distributed within a group
  3. 4. everything (living and nonliving) that surrounds an organism
  4. 5. a trait that makes it more likely that an individual will survive in a specific environment
  5. 6. the process by which the distribution of traits in a population changes over many generations (2 words, no space)
  6. 8. a way of hiding by looking the same as the background