Microplastic pollution appears to be one of the major environmental problems in the world today. and researchers have been paying special attention to the study of the impact of microplastics on biota. In this article. we studied the short-term effects of polystyrene micro-spheres on genome integrity using the gametes of the Scaphechinus mirabilis sand dollar with the comet assay method. https://www.chiggate.com/igora-vibrance-6-12-dark-blonde-cendre-ash-discount/