Across
- 2. a larger, more inclusive taxonomic category than a kingdom (there are 3-Bacteria, Archaea, and Eukarya)
- 3. descent a term within evolutionary biology which refers to the common ancestry of a particular group of organisms.
- 6. heritable characteristic that increases an organism's ability to survive and reproduce in an environment
- 9. selection selective breeding of plants and animals to promote the occurrence of desirable traits in offspring
- 12. dating method for determining the age of a sample from the amount of a radioactive isotope to the nonradioactive isotope of the same element in a sample
- 13. diagram depicting patterns of shared characteristics among species
- 14. character–a trait that arose in the most recent common ancestor of a lineage and was passed to its descendants
- 15. how well an organism can survive and reproduce in its environment
- 17. structure structures that are similar in different species of common ancestry
- 18. the study of the evolutionary history of lineages of organisms
- 19. change over time; the process by which modern organisms have descended from ancient organisms
- 21. dating method of determining the age of a fossil by comparing its placement with that of fossils in other rock layers
- 23. name refers to the colloquial name of a taxon or species. It is the name known to the general public or is based on any language
- 24. the study of past and present distribution of organisms
Down
- 1. nomenclature classification system in which each species is assigned a two-part scientific name
- 3. evolutionary branch of a cladogram that includes a single ancestor and all its descendants
- 4. refers to an individual with characteristics different from the others of the same kind.
- 5. preserved remains or traces of ancient organisms
- 7. structure body parts that share a common function, but not structure
- 8. selection process by which organisms that are most suited to their environment survive and reproduce most successfully; also called survival of the fittest
- 10. fossil distinctive fossil that is used to compare the relative ages of fossils
- 11. structure structure that is inherited from ancestors but has lost much or all of its original function
- 16. molecules molecules in different organisms that show similarities in their composition (DNA, RNA and proteins)
- 19. the branch of biology and medicine concerned with the study of embryos and their development.
- 20. name A name used by scientists, especially the taxonomic name of an organism that consists of the genus and species
- 22. classification comprising related organisms that share common characteristics and are capable of interbreeding