Natural Selection

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Across
  1. 3. the process by which the distribution of traits in a population changes over many generations
  2. 5. a young insect that looks somewhat different from the adult
  3. 6. a related organism from a previous generation
  4. 7. a trait that makes it more likely that an individual will survive in a specific environment
  5. 8. any difference in traits between individual organisms
  6. 9. a group of individuals born and living at about the same time
  7. 11. evidence of life from the past, such as fossilized bones, footprints, or leaf prints
  8. 18. the process in which two parents pass on their genes to create offspring
  9. 20. an organism produced as a result of reproduction
  10. 22. a characteristic that all members of a species have
  11. 24. having died out completely and no longer alive anywhere on Earth
  12. 27. everything (living and nonliving) that surrounds an organism
  13. 28. something in the environment that affects an individual’s chances of surviving
  14. 32. an animal that hunts and kills other animals for food
  15. 34. a type of large molecule that performs important functions inside organisms
  16. 35. when a huge number of species on Earth
Down
  1. 1. a random change to a gene that sometimes results in a new trait
  2. 2. a specific form of a gene that provides instructions for making a particular protein molecule
  3. 3. a trait that makes it less likely that an individual will survive in a specific environment
  4. 4. things people do that affect the Earth system
  5. 10. a long piece of DNA that contains many genes
  6. 12. from any other group
  7. 13. a way of hiding by looking the same as the background
  8. 14. the number of individuals with each trait in a population
  9. 15. an event or process that leads to a result or change
  10. 16. a group of the same type of organism living in the same area
  11. 17. an animal that is hunted or killed by another animal for food
  12. 19. to stay alive
  13. 21. a specific characteristic of an individual organism
  14. 23. to receive genes from a parent
  15. 25. a graph that uses bars to show how characteristics or values are distributed within a group
  16. 26. a type of molecule that genes and chromosomes are made of
  17. 27. a result or change that happens because of an event or process
  18. 29. living things, such as plants, animals, and bacteria
  19. 30. a group of organisms of the same kind (in one or more populations)that do not reproduce with
  20. 31. an instruction for making a protein molecule
  21. 33. out completely around the same time