Natural Selection

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