31. Which of the following is NOT true about Connell's study on barnacles Balanus balanoides and Chthamalus stellatus? A. Chthamalus is excluded from the middle intertidal zone by interspecific competition with Balanus. B. In the absence of Balanus, Chthamalus can live over a broad zone. C. Competition largely restricts Balanus to the upper intertidal zone. D. All the statements are correct. 32. Which of the following statement is true to both Pisaster sea star and wolves in Yellowstone National Park? A. Both are keystone species. B. They play a role in determining the species composition and functioning of the community. C. They are not the most abundant species but they have a profound influence in the entire community. D. All the statements are correct. 33. Which of the following species has a wide niche breadth? A. panda B. koala C. manatee D. lion

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Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.