Natural Selection

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Across
  1. 3. the number of individuals with each trait in a population
  2. 4. living things, such as plants, animals, and bacteria
  3. 5. a characteristic that all members of a species have
  4. 8. something in the environment that affects an individual's chances of surviving
  5. 9. a group of the same type of organism living in the same area
  6. 11. a specific characteristic of an individual organism
  7. 12. a long piece of DNA that contains many genes
  8. 16. the process by which the distribution of traits in a population changes over many generation
  9. 17. a group of organisms of the same kind that do not reproduce with organisms from any other group
  10. 18. an y difference in traits between individual organisms
  11. 19. an organism produced as a result of reproduction
  12. 20. a related organism from a pervious generation
  13. 21. an instruction for making a protein molecule
Down
  1. 1. a trait that makes it less likely that an individual will survive in a specific environment
  2. 2. a random change to a gene that sometimes results in a new trait
  3. 6. everything(living and nonliving) that surrounds an organism
  4. 7. to receive genes from a parent
  5. 10. a trait that makes it more likely that an individual will survive
  6. 13. a type of large molecule that performs important functions inside an organism
  7. 14. a group of individuals born and living at about the same time
  8. 15. a type of molecule that genes and chromosomes are made of