Refer to the graph. According to the graph, which statement best describes the relationship between total plant cover (a measure of productivity) and number of species (species richness) in test plots?
A) Greater species richness is associated with lower productivity.
B) Greater species richness is associated with greater productivity.
C) Productivity and species richness do not appear to show a relationship.
D) Productivity remains relatively high regardless of total plant cover.
E) Productivity increases when species richness is low but decreases when it is high.

Question

Refer to the graph.  According to the graph, which statement best describes the relationship between total plant cover (a measure of productivity) and number of species (species richness) in test plots? 
A) Greater species richness is associated with lower productivity. 
B) Greater species richness is associated with greater productivity. 
C) Productivity and species richness do not appear to show a relationship. 
D) Productivity remains relatively high regardless of total plant cover. 
E) Productivity increases when species richness is low but decreases when it is high.

Quizplus · Accepted Answer

The graph shows a positive correlation between total plant cover and number of species, suggesting that greater species richness is associated with greater productivity.

Refer to the Graph