Vocab Quiz unit 7

pattern of evolutionary change that produced biological diversity by budding one or more new species from a parent species that continues to exist

coexistence of two or more distinct forms of individuals in the same population

pattern of evolutionary change involving the transformation of an entire population sometimes to a state different enough from the ancestral population to rename it as a separate species

descent with modification; species accumulate differences from their ancestors as they adapt to different environ; change in genetic composition from generation to generation

process where individuals with inherited traits survive and reproduce

concerned with naming and classifying diff forms of life

preserved remnant or impression of an organism that lived in the past

evolution is slow gradual and uniform, adaptation occurs over a long period of time with small changes

idea that earth has always changes in uniform ways and processes that alter the earth now and the results are the same as millions of years ago

each boundary between strata in the rock layers represent a catastrophe that killed many organisms at the time

passing traits from parent to offspring and species have a common ancestor

selective breeding of plants and animals to encourage the occurrance of desirable traits

scientific study of the past and present geographic distributions of species

structures in different species that are similar because of common ancestry

feature of an organism that is a historical remnant of a structure that served a function in the organisms’ ancestor

the aggregate of all copies of every type of allele at all loci in every individual in a population

state of a population where the frequencies of alleles and genotypes stay constant from generation to generation, provided that only mendelian segregation and recombination of alleles were at work

process where chance events cause unpredictable fluctuations in allele frequencies from one generation to the next

genetic drift that occurs when the size of the population is reduced by natural disasters or humans

genetic drift when a few individuals are isolated and form a new population whos gene pool composition is not reflective of the original population

evolutionary change below the species level; change in the allele frequencies in a population over generations

evolutionary change above the species level cause the origin of a new group of organisms through speciation and mass extinctions

evolutionary process in which one species splits into two or more species

formation of new species in populations that are geographically isolated from one another