Across
- 2. Ancestral organism shared by two or more descendent lineages
- 4. consisting of organisms that share a common attribute;
- 6. the change in frequency of an existing gene
- 7. change in the sequence of DNA
- 8. that have a similar but different evolutionary origins
- 10. Structures that have no apparent function and appear to be residual parts of a past ancestor.
- 11. Disappearance of a species from the earth
- 12. how a new kind of plant or animal species is created.Geneflow transfer of genetic material between different population
- 14. theory that evolution occurs slowly
- 16. Evolutionary history and relationship among organism
- 18. total collection of genes and their alleles in a population
- 19. the highest taxonomic rank of all organisms taken together.
- 20. change then stable then change
- 22. used in classifying organisms, generally below the class.
- 24. rank comprised of species grouped based on shared attributes
- 25. A taxonomic rank in the classification of organisms between genus and order.
Down
- 1. father of the evolution
- 3. the most basic category in the system of taxonomy.
- 5. adaptation to a specific environment or thing
- 9. diffrences in traits among individuals of a population
- 13. a process that results in changes in the genetic material of a population over time.cladograms show us how relative are the species
- 15. individual organism used for scientific study in its environmental
- 16. Class in biological classification, especially of animals.
- 17. a mechanism of evolution
- 21. a tool used to classify species
- 23. a taxonomic rank that is composed of smaller groups called phyla (or divisions, in plants).