This suggested that the fraction of sand in soils plays a role in the process of forming fairy circles. (journals.plos.org)
The human microbiome plays a role in processes as diverse as body composition, immune function, and mental health. (gladstone.org)
Scientists have long known that the acquisition of language plays a role in this process, but so far it had been unclear whether social experience could substitute for it. (scientificamerican.com)