Across
- 3. All information about past life that can provide evidence about the history of life on Earth
- 4. Species producing more offspring than can survive
- 5. All members of a species that live in an area
- 9. When the last individual organism of a species dies
- 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
- 12. Organisms that are most fit to their environment will have the best chance of survival
- 13. Selective breeding to enhance desired traits among stock or crops
- 14. Occurs as a population's genes and frequencies change over time
- 15. When organisms of the same species compete for limited food and other resources
Down
- 1. Gradual change over a long period of time leading to new species
- 2. When populations can't breed due to geographic separation
- 6. The ability of an organism to survive and reproduce in its environment based on the traits they have
- 7. An inherited characteristic that increases an organism's chance for survival
- 8. Differences in traits between individuals of the same species
- 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
