Natural Selection

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Across
  1. 2. a graph that uses bars to show how characteristics or values are distributed within a group
  2. 3. a long piece of DNA that contains many genes
  3. 5. TO stay alive
  4. 9. everything (living and nonliving) that surrounds an organism
  5. 11. an idea about what might happen that is based on what you already know
  6. 12. a type of molecule that genes and chromosomes are made of ADN
  7. 13. a group of individuals born and living at about the same time
  8. 15. a trait that makes it more likely that an person will survive
  9. 17. a specific characteristic of an individual organism
  10. 18. a random change to a gene that sometimes results in a new trait
  11. 19. a way of hiding by looking the same as the background
  12. 21. a group of the same type of organism living in the same area
  13. 22. a group of organisms of the same kind (in one or more populations) that do not reproduce with organisms from any other group
  14. 25. an animal that hunts and kills other animals for food
  15. 28. living things, such as plants, animals, and bacteria
  16. 29. to receive genes from a parent
  17. 31. the process in which two parents pass on their genes to create offspring
  18. 32. an instruction for making a protein molecule
Down
  1. 1. the process by which the distribution of traits in a population changes over many generations
  2. 4. an organism produced as a result of reproduction
  3. 6. a young insect that looks somewhat different from the adult
  4. 7. a trait that makes it less likely that an individual will survive in a specific environment
  5. 8. the number of individuals with each trait in a population
  6. 10. a characteristic that all members of a species have
  7. 14. any difference in traits between individual organisms
  8. 16. a related organism from a previous generation
  9. 20. a result or change that happens because of an event or process
  10. 23. something in the environment that affects an individual's chances of surviving
  11. 24. an animal that is hunted or killed by another animal for food
  12. 26. a specific form of a gene that provides instructions for making a particular protein molecule
  13. 27. a type of large molecule that performs important functions inside organisms
  14. 30. an event or process that leads to a result or change