Problem
In this lab, you will test if rotifers prey upon unicellular yeast more frequently than multicellular yeast when exposed to equal concentrations of both yeast types. You will observe the feeding of multiple rotifers, calculating the proportion of unicellular and multicellular yeast that each rotifer ingested (see lab methodology for details). You will use the collected data to make a histogram showing the proportion of unicellular yeast ingested on the x-axis and the number of rotifers tested (i.e., examined) on the y-axis.
Which figures illustrate a situation in which rotifers feed more on unicellular yeast?