Across
- 5. when the earth's surface layers begin to tilt or slant irregularly
- 6. is a stack of originally planar surfaces, such as sedimentary strata, that are bent or curved during permanent deformation
- 8. resulting from changes in systems (with respect to time, space, or other variables) in ways that are difficult to predict.
- 9. of determining the relative order of past events without necessarily determining their absolute age
- 11. of a tooth back into the bone.
- 12. that is useful for dating and correlating the strata in which it is found.
- 13. selection is the differential survival and reproduction of individuals due to differences in phenotype.
- 14. is similarity due to shared ancestry between a pair of structures or genes in different taxa.
Down
- 1. is a theory of biological evolution
- 2. breeding is the process by which humans use animal breeding and plant breeding to selectively
- 3. of the fittest" is a phrase that originated from Darwinian evolutionary theory as a way of describing the mechanism of natural select
- 4. is a planar fracture or discontinuity in a volume of rock across
- 7. or divergent selection is the accumulation of differences between closely related populations within a species, sometimes leading to speciation.
- 10. change in population over time
