MCQ
Initiating force of evolution is
- AAdaptation
- BNatural selection
- ✓Variation
- DCompetition
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$I$. There are many side effects of tubectomy and vasectomy
$II$. Purpose of tubectomy is to prevent egg formation
$III$. The most important component of the oral contraceptive pill is progesterone
$IV$. Contraceptive oral pills help in birth control by preventing ovulation
(column-$I$) with one characteristic
(column $II$), and the phylum/class
(column $III$) to which it belongs
Column $I$ - Column $II$ - Column $III$