Across
- 4. the genetic makeup of a cell or organism; defined by certain alleles for a particular trait.
- 5. remains or traces of animals, plants and other organisms from the past; usually at least 10000 years old
- 6. Dating determining the age or order of things from the past or past events without knowing or calculating the actual age
- 8. Variation the characteristics that make members of the same species different from one another.
- 10. Time Scale timeline that illustrates Earth's past. This timeline includes the divisors of the 4.6 billion years of Earth's geologic and biologic existence, and divides time into eons, eras, periods, and epochs. The divisions of the time scale are based on major events that have caused major geologic or biologic change throughout history, such as mass extinctions.
- 11. anatomy the analysis of body structures (body systems , skeletal systems) between two or more different species that provides insight into the genetic/biologic similarities and differences across species
- 14. fracture along which blocks of the Earth's crust that can be caused by the shifting or dislodging of the Earth's crust. Types include normal, strike slip, or reverse
- 15. rock rock formed by deposition of sand, clay and other pieces of rock that are compacted together under pressure
- 17. classification the organization and identification of an organism from general to specific by identifying the organisms' Domain, Kingdom, Phylum, Class, Order, Genus, and Species
- 18. Body Structures Similar body structures and systems between different species; evidence for biologic evolution
- 19. Plate the part of Earth's crust that underlies the oceans
- 21. -the complete elimination (dying out) of a species due to the species inability to survive and therefore adapt to its environment.
- 22. rock rock created from the transformation of other types of rock through heat and pressure
- 25. a beneficial trait that helps an organism survive in its environment.
- 26. Change the change in a geographic area caused by earthquakes, volcanoes, mountains forming, and other natural phenomena.
- 28. the physical appearance that is a result of the genotype.
- 29. Core a core sample of ice removed from a sheet of ice. Properties of the ice and the crystallized components in the ice are used to reconstruct climatic record
- 30. radioactive heavy metal that is an abundant source of nuclear energy that has 14 known isotopes used in radioactive dating
Down
- 1. of Evolution the theory that organisms/species change over time, caused by the natural selection of advantageous traits for survival in a particular environment. This theory also proposes that all organisms evolved from a common ancestor.
- 2. Change change in an organism's genetic makeup, DNA, that occurs through natural selection of advantageous traits for survival over an extended period of time.
- 3. the study of the rocks, processes, and history of Earth
- 7. (radioactive)Dating measurement of the known rates of decay of radioactive materials that an object contains in order to determine the age of the object
- 9. Selection explanation of how organisms in a population develop traits that allow them to survive and reproduce
- 12. a child or animal in relation to its parent or parents.
- 13. similarities liknesses in the embryonic stage of development between different species; evidence for evolution.
- 16. rocks type of rock formed under or above ground when magma or lava cools
- 20. Plate the crust that makes up the continents
- 23. of Crosscutting Relationships states rock layers that cut across other rock layers are younger than those they cut
- 24. are the different forms of a trait.
- 27. Fossil fossil known to have lived in a particular geologic age that can be used to determine the date of the rock layer in which it was found
- 28. Tectonics the Earth's lithosphere is broken into major and minor plates of continental or oceanic crust that are in constant motion due to their position above the convection currents of the asthenosphere. The movement of the tectonic plates is responsible for geologic and subsequent biologic change over time.