MCQ
The age of pyramid with narrow base indicates.
- AHigh number of young individuals.
- BLow number of young individuals.
- CHigh number of old individuals.
- DLow number of old individuals.
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| Column - $I$ | Column - $II$ |
| $(a)$ Parasitism | $(i)$ $++$ |
| $(b)$ Commensalism | $(ii)$ $+-$ |
| $(c)$ Amensalism | $(iii)$ $0+$ |
| $(d)$ Mutualism | $(iv)$ $0-$ |