Across
- 3. more offspring are usually produced than can survive
- 7. organism that are better adapted to the environment survive and therefore live to reproduce more successfully than organisms not well adapted
- 8. an animal that plays an important part of Darwin's research
- 9. how well adapted an organism is to the environment
- 10. a change that occurs in a population as it responds to environmental changes
- 11. change in the kind of organism over time
- 12. dying or extermination of a species
- 13. a naturalist who started the idea of "descent of modification"
Down
- 1. creation of new species
- 2. unique location where many animals there could not be found anywhere else in the world
- 4. due to overproduction, there is struggle between species for resources
- 5. a process in which organism with the best suited traits to the environment will survive and reproduce
- 6. certain members of a population have different traits that make them better adapted to survive