MCQ
First cell produced on earth is:
- AProtobiont
- BProtozoa
- CMetazoa
- DNone of the above
Explanation:
First cells produced were simple aggregates of organic compounds, called protobionts, which are thought to be precursors of prokaryotes.
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| Column - $I$ | Column - $II$ |
| $(a)$ Herbivores-Plants | $(i)$ Commensalism |
| $(b)$ Mycorrhiza-Plants | $(ii)$ Mutualism |
| $(c)$ Sheep-Cattle | $(iii)$ Predation |
| $(d)$ Orchid-Tree | $(iv)$ Competition |
| List-A Bioactive Products | List-B Microorganisms(Source Organisms) |
| (A) Cyclosporine-A | (i) Streptococcus |
| (B) Statin | (ii) Trichoderma polysporum |
| (C) Streptokinase | (iii) Penicillium notatum |
| (D) Penicillin | (iv) Monascus purpureus |