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All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

The cluster of developing cells from conception until birth is called an

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .