Natural Selection

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