Which one of these processes describes bottleneck effect? group of answer choices
alleles transferred to the next generation in portions that differ from previous generation
chance events that change allele frequency sudden change in environments that alters gene frequency of a population transfer of alleles in and out of a population due to movement of fertile individuals

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

Are the earth's ocean floor and continents the same age geologically? why or why not?