Classification and Evolution (2023/2024) Rated A+

Classification and Evolution (2023/2024) Rated A+ gene pool the sum total of all the alleles in a population reproductive isolation when a gene pool (population) has been split into two or more separate groups that no longer mate behavioral isolation differences in courtship rituals or other behaviors that prevent interbreeding geographic isolation when two populations are separated by physical barriers such as mountains, deserts, bodies of water temporal isolation when two or more species reproduce at different times speciation where one species splits into two separate species (formation of a new species) ((usually caused by reproductive isolation)) cladistics classification based on common ancestry taxonomy the science of classifying and naming organisms taxa group or level of organization into which organisms are classified clade A group of species that evolved from a common ancestor homologous traits (homologies) similar features that are present in two or more species that are also present in the common ancestor of those species (traits shared due to shared evolutionary history) analogous traits similar features that are produced by convergent evolution, and NOT the result of shared evolutionary history convergent evolution process by which unrelated organisms independently evolve similarities when adapting to similar environments species smallest, most exclusive taxonomic group; a group of organisms consisting of similar individuals capable of exchanging genes or interbreeding mutation change in a DNA sequence that affects genetic information punctuated equilibrium Pattern of evolution in which long stable periods are interrupted by brief periods of more rapid change gradualism slow steady change in a phylum with a steady accumulation of small changes adaptation A trait that helps an organism survive and reproduce