Across
- 2. mechanism of evolution where more offspring produced than make it to maturity
- 5. using strata scientists can use ________ age to determine the age of fossils
- 7. observed organisms in Earth's past different from today
- 8. the measure of an organisms hereditary contribution to the next generations
- 10. Thomas ____ believed in not enough resources for everyone being born and being born faster than dying off
- 12. the development of new organisms from old ones
- 14. describes the change in traits over time
- 15. Darwin's Grandfather believed in descent with modification and common ancestor
- 16. finches on the Galapagos are ________ closely related to each other than to the mainland
- 17. the remains or traces of an organism that died long ago
Down
- 1. mechanism of evolution where there is __________ variation within a population
- 3. Darwin believed that all life came from _______ organism
- 4. a mechanism of evolution where organisms with the best adaptations are most likely to survive and reproduce
- 6. responsible for the idea of uniformitarianism within geology where forces of the past still changed earth the same as today
- 7. struggle to survive where individuals must compete to survive
- 9. came up with the theory of evolution independently of Darwin
- 11. the term descent with ______ used to describe evolution
- 13. believed inaccurately that you acquire traits over your lifetime that can be passed on