Natural Selection

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Across
  1. 3. a group of individuals born at the same time
  2. 5. a change in a species over a long period due to natural selection.
  3. 8. A related organism from a previous generation
  4. 9. Everything that surrounds an organism
  5. 14. A way of hiding by blending into the background
  6. 15. An adaptation that is an action that benefits survival
  7. 18. a group of the same type of organism living in an area
  8. 19. a molecule that genes and chromosomes are made of
  9. 20. A trait that makes it more likely that an individual will survive
  10. 21. A piece of DNA that codes for many genes
  11. 23. living things, such as plants, animals, and bacteria.
Down
  1. 1. any differences between organisms.
  2. 2. to receive genetic information from a parent
  3. 4. a group of organism of the same kind
  4. 6. an adaptation that is a physical trait on an organism that helps them survive
  5. 7. a characteristic that all members of a species have.
  6. 10. an instruction for making a protein molecule,leading to a physical trait.
  7. 11. the process by which traits change in a population over many generations.
  8. 12. a characteristic of an individual organism
  9. 13. an organism that is produced by reproduction
  10. 16. trait that makes it less likely for an organism to survive and reproduce.
  11. 17. a random change to a gene that sometimes causes a new trait.
  12. 22. something in the environment that affects an individual's chances of surviving.