Manifestation of masculinity patterns in females due to hormonal effects is known as

How many endocrine glands are located in the brain region?

$5$-Hydroxytryptamine ($5$-$HT$) is known as:

Match the entries in Column-$I$ with those of Column-$II$ and choose the correct answer given below.

Column-$I$	Column-$II$
$A$. $FSH$	$(p)$ Normal growth
$B$. $GH$	$(q)$ Ovulation
$C$. Prolactin	$(r)$ Parturition
$D$. Oxytocin	$(s)$ Water diuresis
	$(t)$ Milk secretion

Provide the differences between the following:
$(1)$ Neural system and Endocrine system
$(2)$ Hormones of adrenal cortex and Hormones of adrenal medulla
$(3)$ Thyroid hormones and Parathyroid hormones

From the perspective of embryonic origin,which of the following is ectodermal?