Find the odd one out with respect to the gland and its secretions.

Give scientific reasons:
$(1)$ Hormones are regulatory chemicals.
$(2)$ Less secretion of thyroxine results in stunted growth of a person.
$(3)$ Deficiency of insulin results in diabetes mellitus.
$(4)$ Pancreas is an exocrine and endocrine gland.

$A$ person placed in a cold environment cannot exhibit which of the following?

Match the following columns:

Column-$I$	Column-$II$
$P$. Anterior Pituitary	$I$. $MSH$
$Q$. Intermediate Pituitary	$II$. $ADH$
$R$. Posterior Pituitary	$III$. $LH$
	$IV$. $FSH$
	$V$. $GH$
	$VI$. Oxytocin
	$VII$. $PRL$
	$VIII$. $TSH$
	$IX$. $ACTH$

Match the name of the hormone in Column-$I$ with its source of secretion in Column-$II$ and its function in Column-$III$.

Column-$I$	Column-$II$ $\&$ Column-$III$
$(a)$ Prolactin	$(m)$ Pituitary gland,$(q)$ Development of lactiferous tubules
$(b)$ Estrogens	$(l)$ Graafian follicle,$(r)$ Secondary sexual characters in females
$(c)$ GnRH	$(n)$ Hypothalamus,$(s)$ Stimulates release of $FSH$
$(d)$ Androgen	$(o)$ Interstitial cells,$(p)$ Secondary sexual characters of males

Match the endocrine glands with their hormones and functions correctly.