Organism
divergence / divergent evolution
Genetic, behavioural and morphological divergence, or genetic drift.
Genetic differences
divergent evolution
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It is called variations
Sub species , varieties .
Of course - look at the many differences existing between the human race.
variations
One similarity is that both are harmful and the differences are that bioaccumulation is the accumulation of pollutants in an organism and pollution is a harmful material that is released in the environment through human activaties.
evolution
ones a hore and the others not