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Question
Match the following and choose the correct combination from the options given below.
| Column I | Column II |
| Mutualism | Lion and deer |
| Commensalism | Round worm and man |
| Parasitism | Birds compete with squirrels for nuts |
| Competition | Sea anemone on hermit crab |
| Predation | Barnacles attached to Whales |
Options
A - 4, B - 5, C - 2, D - 3, E - 1
A - 3, B - 1, C - 4, D - 2, E - 5
A - 2, B - 3, C - 1, D - 5, E - 4
A - 5, B - 4, C - 2, D - 3, E - 1
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Solution
A - 4, B - 5, C - 2, D - 3, E - 1
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The graph represents inter-specific interaction between two species of Paramecia competing for the same resource in a culture medium. Paramecium caudatum and Paramecium aurelia were grown in separate cultures as well as in mixed cultures. It was found that each species grew in numbers according to the logistic equation.
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a) Which species is competitively superior? Support it with the data provided in the graph.
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OR
Graphs A and B shown below depict interaction of two species. Which graph indicates Mutualism? Give reason.
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| A | B |



