Question

the graph shows the changes in two populations of herbivores in grassy field. a possible reason for these changes is that population a consumed the members of population b population a produced more offspring than population b did population b competed more successfully for food than population a did all of the plant populations in this habitat decreased

Explanation:

In a competitive - environment for herbivores in a grassy field, if one population (B) competes more successfully for food than the other (A), the population of A will decline and B will increase, which is consistent with the graph showing the changes in the two populations over time.

Answer:

population B competed more successfully for food than population A did