Match the items $ABCD$ of table $'A'$ with that of items in table $'B'$ then the correct pairing sequence of $ABCD$ will be
$'A' $ $ 'B'$
$A.$Cleavage $1.$ Formation of $3$ germ layers
$B.$Gastrulation $2.$ Formation of embryo spinal cord
$C.$Neurulation $3.$ Results in formation of skeleton and muscles from mesoderm
$D.$Organogenesis $4.$ Pattern depends on the amount and distribution of yolk
$4, 1, 2, 3$
$2, 3, 1, 4$
$4, 2, 3, 1$
$3, 1, 2, 4$
If an unfertilized egg is pricked with a micro needle, it will
Name $A, B, C$ chormones in the given figure
Which one of the following statements is incorrect about menstruation?
$A$ : In frog gray cresent is formed during fertilization.
$R$ : It is because the black granules move towards the point of entry of the sperm in animal half
Both corpus luteum and macula lutea are