The graphs below represent sizes of four populations in a desert grassland with two plant species (P1 and P2) and two species of rodent (R1 and R2) that eat the plants' seeds. Assuming that the patterns in your simulated lake result from processes common to most communities, which graph represents the most realistic pattern for this community? Graph A Graph B P1 72 RI R2 P2 Graph C Graph D RI P1 Graph D Graph C Graph B Graph A Population Size