Question 37
(Multiple Choice)
Refer to the figure.
The figure is derived from studies of algal succession in the presence and absence of the barnacle Balanus and limpets. Which condition is represented by the purple line (indicated by the black arrow)?
A) The presence of both limpets and Balanus
B) The presence of limpets and the absence of Balanus
C) The presence of Balanus and the absence of limpets
D) The absence of both limpets and Balanus
Answer