Figure 54-1
Use the figure to answer the corresponding question(s).
-In Experimental Condition 1 of Figure 54-1, the distribution of Balanus suggests:
A) that interspecific competition kept Balanus from extending higher into the intertidal area.
B) that intraspecific competition kept Balanus from extending higher into the intertidal area.
C) that an unfavorable environmental factor kept Balanus from extending higher into the intertidal area.
D) that Balanus is less motile than Chthamalus.
E) that Balanus is more motile than Chthamalus.

Question

Figure 54-1
Use the figure to answer the corresponding question(s). 
-In Experimental Condition 1 of Figure 54-1, the distribution of Balanus suggests:
A) that interspecific competition kept Balanus from extending higher into the intertidal area. 
B) that intraspecific competition kept Balanus from extending higher into the intertidal area. 
C) that an unfavorable environmental factor kept Balanus from extending higher into the intertidal area. 
D) that Balanus is less motile than Chthamalus. 
E) that Balanus is more motile than Chthamalus.

Quizplus · Accepted Answer

The distribution of Balanus in Experimental Condition 1 suggests that an unfavorable environmental factor, such as desiccation or temperature, prevented it from extending higher into the intertidal area, rather than competition.

Figure 54-1 Use the Figure to Answer the Corresponding Question(s)