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In laboratory experiments, two species of the protist Paramecium (species 1 and 2) were grown alond and in the presence of the other species. The following graphs show growth of species 1 and species 2, both alone and when in mixed culture with the other species. Which of the following conclusions can be drawn from the graphs ?A. Competitive exclusion occurred in these experiments.B. Both species are affected by interspecific competition but species 1 is affected less.C. Both species are affected by interspecific competition but species 2 is affected less.D. Both species are affected equally by interspecific competition. |
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Answer» Correct Answer - C When species 1 was ket with species 2, its number of individuals fell drastrically while when species 2 was kept with species 1, its number of individuals was not much affected. Hence, both species are affected by inter-specific competition but species 2 is less affected. |
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