Natural Selection
Across
- 3. All members of a species that live in an area.
- 5. gradual change over a long period of time leading to new species
- 7. Species producing more offspring than can survive
- 9. Selective breeding to enhance desired traits among stock or crops
- 10. All information about past life that can provide evidence about the history of life on Earth.
- 11. When the last individual organism of a species dies.
- 13. 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
- 14. Organisms that are most fit to their environment will have the best chance of survival.
- 15. Occurs as a population’s genes and frequencies change over time.
Down
- 1. 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.
- 2. When populations cant breed due to geographic separation
- 4. Differences in traits between individuals of the same species
- 6. An inherited characteristic that increases an organism’s chance for survival.
- 8. The ability of an organism to their traits in its environment based on the traits they have.
- 12. When organisms of the same species compete for limited food and other resources