MCQ
Which must be preserved in an ecosystem, if the system is to be maintained
- AProducers and carnivores
- ✓Producers and decomposers
- CCarnivores and decomposers
- DHerbivores and carnivores
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| Column $- I$ | Column $- II$ |
| $(1)$ Germ pore | $(a)$ Lack of sporopollenin |
| $(2)$ Parthenium | $(b)$ Malva |
| $(3)$ Self incompatibility | $(c)$ Palms |
| $(d)$ Contaminant with important wheat |
Choose the correct option for $A, B$ and $C$