Figure 54-1 in Experimental Condition 1 of the Accompanying

question 33

Multiple Choice

Figure 54-1 In Experimental Condition 1 of the accompanying figure, the distribution of Balanus suggests: that

• A) interspecific competition kept Balanus from extending higher into the intertidal area.
• B) intraspecific competition kept Balanus from extending higher into the intertidal area.
• C) an unfavorable environmental factor kept Balanus from extending higher into the intertidal area.
• D) Balanus is less motile than Chthamalus .
• E) Balanus is more motile than Chthamalus .

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