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| Column $-I$ | Column $-II$ |
|---|---|
| $(a)$ Predation | $(i) \ (-, 0)$ |
| $(b)$ Commensalism | $(ii) \ (+, -)$ |
| $(c)$ Mutualism | $(iii) \ (+, 0)$ |
| $(d)$ Amensalism | $(iv) \ (+, +)$ |
| Column-$I$ | Column-$II$ |
|---|---|
| $(a)$ Parasitism | $(i)$ $++$ |
| $(b)$ Commensalism | $(ii)$ $+-$ |
| $(c)$ Amensalism | $(iii)$ $0+$ |
| $(d)$ Mutualism | $(iv)$ $0-$ |
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