Natural Selection

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Across
  1. 3. All information about past life that can provide evidence about the history of life on Earth
  2. 4. Species producing more offspring than can survive
  3. 5. All members of a species that live in an area
  4. 9. When the last individual organism of a species dies
  5. 10. Individuals that have physical or behavioral traits that better suit their environment are more likely to survive and will reproduce more successfully than those that do not have such traits
  6. 12. Organisms that are most fit to their environment will have the best chance of survival
  7. 13. Selective breeding to enhance desired traits among stock or crops
  8. 14. Occurs as a population's genes and frequencies change over time
  9. 15. When organisms of the same species compete for limited food and other resources
Down
  1. 1. Gradual change over a long period of time leading to new species
  2. 2. When populations can't breed due to geographic separation
  3. 6. The ability of an organism to survive and reproduce in its environment based on the traits they have
  4. 7. An inherited characteristic that increases an organism's chance for survival
  5. 8. Differences in traits between individuals of the same species
  6. 11. The changing of the structure of a gene, resulting in a different form that may be transferred to later generations, caused by changes in DNA