Blastopore is found in

In humans,the foetal membrane which forms the intimate connection with the uterine tissue is:

$A$ : The morula passes through the phase of compaction,producing two major types of cells: the peripheral cells and the inner cell mass.
$R$ : The descendants of the inner cell mass become the trophoblast cells.

Select the odd one out.

Which processes occur during the development of an embryo from a zygote?

Match the following:

Column-$I$	Column-$II$
$A$. $1^{st}$ month	$i$. First movement of foetus
$B$. $2^{nd}$ month	$ii$. Major organ system
$C$. $3^{rd}$ month	$iii$. Foetal heart
$D$. $5^{th}$ month	$iv$. Limbs $\&$ digits