Figure 52.7 -Based on the Graphs from the Park Grass Study in Grass

Multiple Choice

Figure 52.7
-Based on the graphs from the Park Grass study in Rothamsted,UK (Figure 52.7) ,which species was most likely controlled by density-independent factors?

A) Tragopogon pratensis
B) Trifolium pratense
C) Conopodium majus
D) It does not appear that any of the species are under density-independent control and instead are mainly regulated by density-dependent factors.
E) All of the species appear to be controlled by density-independent factors.