Unit 11 Vocabulary (CP)

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Across
  1. 4. selection form of natural selection when individuals at one end of a distribution curve have higher fitness than individuals in the middle or at the other end of the curve
  2. 5. formation of a new species
  3. 8. in classification, a group of similar genera
  4. 9. largest and most inclusive group in classification
  5. 12. isolation form of reproductive isolation in which two populations are separated by geographic barriers such as rivers, mountains, or bodies of water, leading to the formation of two separate subspecies
  6. 14. pool all the genes, including all the different alleles for each gene, that are present in a population at any one time
  7. 18. equilibrium pattern of evolution in which long stable periods are interrupted by brief periods of more rapid change
  8. 20. in classification, a group of closely related families
  9. 21. gene trait a trait that is controlled by only one gene.
  10. 22. selection natural selection in which individuals at the upper and lower ends of the curve have higher fitness than individuals near the middle of the curve
  11. 25. principle principle that states that allele frequencies in a population remain constant unless one or more factors cause those frequencies to change
  12. 26. the evolution of a species by gradual accumulation of small genetic changes over long periods of time
  13. 27. refers to the evolution of at least two species, which occurs in response to changes in other species (have a ecological interdependent relationship)
  14. 29. isolation form of reproductive isolation in which two populations develop differences in courtship rituals or other behaviors that prevent them from breeding
  15. 31. extinction event during which many species become extinct during a relatively short period of time
  16. 32. isolation form of reproductive isolation in which two or more species reproduces at different times
Down
  1. 1. name A name used by scientists, especially the taxonomic name of an organism that consists of the genus and specie
  2. 2. effect a change in allele frequency following a dramatic reduction in the size of a population
  3. 3. frequency (relative frequency) the number of times that an allele occurs in a gene pool compared with the number of alleles in that pool for the same gene
  4. 5. selection form of natural selection in which individuals near the center of a distribution curve have higher fitness than individuals at either end of the curve
  5. 6. diagram depicting patterns of shared characteristics among species
  6. 7. structures body parts that share a common function, but not structure
  7. 10. (pl. genera) group of closely related species; the first part of the scientific name in binomial nomenclature
  8. 11. extinction extinction caused by slow and steady process of natural selection
  9. 13. effect change in allele frequencies as a result of the migration of a small subgroup of a population
  10. 15. evolution process by which unrelated organisms independently evolve similarities when adapting to similar environments
  11. 16. classification comprising related organisms that share common characteristics and are capable of interbreeding
  12. 17. isolation separation of a species or population so that they no longer interbreed and evolve into two separate species
  13. 19. drift random change in allele frequency caused by a series of chance occurrences that cause an allele to become more or less common in a population
  14. 21. selection when individuals select mates based on heritable traits
  15. 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
  16. 24. evolutionary branch of a cladogram that includes a single ancestor and all its descendants
  17. 27. in classification, a group of closely related orders
  18. 28. (pl. phyla) in classification, a group of closely related classes
  19. 29. nomenclature classification system in which each species is assigned a two-part scientific name
  20. 30. radiation (divergent evolution) process by which a single species or a small group of species evolves into several different forms that live in different ways