Use the Following Diagram of Joseph Connell's Study of Barnacle

question 36

Multiple Choice

Use the following diagram of Joseph Connell's study of barnacle distribution in Scotland to answer the following two questions.

Figure 54.1
-Which of the following is the most logical conclusion about the distribution of the two species of barnacle, Chthamalus and Balanus?

• A)Chthamalus and Balanus compete for the same types of food.
• B)Balanus is less able to resist desiccation than Chthamalus.
• C)Chthamalus prefers higher temperatures than Balanus.
• D)Balanus is a better osmoregulator that Chthamalus.
• E)Chthamalus is preyed upon more than Balanus by birds because of its size.

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