STD 12 - 3. reproductive health — BIOLOGY STD 12 Science — Question

$(A)$ Wings of butterfly and birds look alike andare the results of ___$(i)$___ evolution.

$(B)$ Miller showed that $CH_4 , H_2 , NH_3$ and ___$(i)$___ when exposed to electric discharge in a flaskresulted in formation of ___$(ii)$___ .

$(C)$ Vermiform appendix is a ___$(i)$___ organ and an ___$(ii)$___ evidence of evolution.

$(D)$ According to Darwin evolution took placedue to ___$(i)$___ and ___$(ii)$___ of the fittest.

$I.$ pre-reproductive

$II.$ reproductive

$III.$ post-reproductive

$IV.$ old-age group

$V.$ adolescent age group

$VI.$ infertile age group

Choose the correct option for given statements