ScLi10- Identify study vаriаbles in reseаrch articles A real study aimed tо test whether the pattern оf resоurce distribution in an environment affected how many individuals of the same species could be maintained by such environment. Researchers used single-strain populations of budding yeast (microorganism that you use to raise dough) in plates with the amino acid tryptophan (Trp) as the exploited, renewable resource. Researchers set 96 plates with Trp . Each plate was divided in 12 sections. Each plate had either a heterogeneous or homogeneous distribution of resources (Trp). A heterogeneous environment was designed by alternating high and low Trp concentrations. A homogeneous environment was designed as having a uniform amount of Trp in all 12 sections. Yeast population in each well was quantified every 24 h as the optical density (OD600) until an asymptote was observed.