Bio 6

3. Rock formed through deposition and solidification of sediment
5. Explanation of observations of the natural world.
6. Process where organisms adapt to their enviroment so they can survive and reproduce
9. Change in an organisms or species that helps it better suit it's environment
10. Came up with the theory of evolution
14. The influence of closely associated species on one another during evolution
15. Innermost layer of cell tissue
16. Different organisms developed from earlier forms, development of an organism
17. The death of a species
18. Scientist who studies fossils and other geological remains
19. The remains r impressions of a prehistoric organism

1. using rocks or deposits to find the age of something
2. Traits that an organism has that their ancestor did not have
4. Physical seperation of members of a population
7. The timing of critical reproductive events prevents members of a closely related species
8. Outermost layer of cell tissue
11. Trace radiation is used to find the age of rocks, minerals, and fossils
12. Measure of evolutionary change over time at the molecular level
13. Middle layer of an embryo