A change in how common certain alleles of a gene are in a group of organism, microevolution, macroevolution, how good an organism is at surviving and reproducing in its environment, fitness, variation, adaptation, gene flow, random change in allele frequency, macroevolution, genetic drift, sexual selection, variation, A major event that drastically reduces the size of a population (ex. Natural disaster, habitat destruction, human activity)​, gene flow, founder effect, sexual selection, bottleneck effect, occurs when mates aren’t chosen at random, only the fittest will survive and reproduce, non-random mating (sexual selection), founder effect, gene flow, bottleneck effect, Adélie Penguins - Males present females with pebbles as a gift for nest building, and the female accepts the pebble if she likes it, founder effect, non-random mating (sexual selection), gene flow, bottleneck effect, A few individuals from a population start a new population with a different allele frequency than the original population. , founder effect, sexual selection, gene flow, bottleneck effect, transfer of genetic variation from one population to another, founder effect, sexual selection, gene flow, bottleneck effect, A bird from one population travels to a new bird population, founder effect, sexual selection, gene flow, bottleneck effect, when a small group of iguanas are washed ashore on a new island and establish a new population, founder effect, sexual selection, gene flow, bottleneck effect, when a population of red and yellow beetles, a few red ones go to a new island and create a new population, founder effect, sexual selection, gene flow, bottleneck effect, A tornado kills off part of the population, founder effect, sexual selection, gene flow, bottleneck effect, All adaptations begin as ____________., traits, mutations, variations, fitness, ___________ is a mechanism of evolution. It ensures that only the traits that help a species survive and reproduce get passed on to future generations, natural selection, mutation, adaptation, variation, name for the formation of new species, evolution, natural selection, speciation, variation, new species form through ______________., reproductive isolation, sexual selection, gene flow, genetic drift, _____________________ is when a species is not able to breed successfully with related species because of barriers or differences in, reproductive isolation, genetic drift, gene flow, bottleneck effect, When species are isolated by time; and may breed at different times of day, during different seasons, or different years, temporal isolation, behavioral isolation, habitat isolation, mechanical isolation, two species of frogs that live in the same pond. One might breed in the spring, while another breeds in the summer, temporal isolation, behavioral isolation, habitat isolation, mechanical isolation, occurs when different species live in the same geographic area, but they occupy different habitats, temporal isolation, behavioral isolation, habitat isolation, mechanical isolation, occurs when different species have different courtship rituals, temporal isolation, behavioral isolation, habitat isolation, mechanical isolation, The blue-footed booby dances to attract a mate, while the bowerbird builds an intricate, highly decorated nest to attract a mate., temporal isolation, behavioral isolation, habitat isolation, mechanical isolation, occurs when structural differences prevent mating from taking place (aka- parts don't match), temporal isolation, behavioral isolation, habitat isolation, mechanical isolation.

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