MCQ
When Dryopithecus and ramapithecus wereexisting ?
- AAbout $5$ mya
- BAbout $30$ mya
- ✓About $15$ mya
- DAbout $4$ mya
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| Column $-I$ | Column $-II$ |
| $(A)$ Tuberculosis | $(i)$ Harmless virus |
| $(B)$ Whooping cough | $(ii)$ Inactivated toxin |
| $(C)$ Diphtheria | $(iii)$ Killed bacteria |
| $(D)$ Polio | $(iv)$ Harmless bacteria |