Natural Selection

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