Intercellular communication in humans takes place by:

Given below is an incomplete table about certain hormones, their source glands, and one major effect on the human body.
Identify the correct option for the three blanks $A$, $B$, and $C$.

Gland	Secretion	Effect on Body
$A$	Oestrogen	Maintenance of secondary sexual characters
Alpha cells of islets of Langerhans	$B$	Raises blood sugar level
Anterior pituitary	$C$	Over secretion leads to gigantism

Which of the following hormones affect carbohydrate metabolism?

The following table summarizes some endocrine glands,their hormones,and their functions in the human body. Identify the correct options for the three blanks $A, B$,and $C$.

Endocrine Gland	Hormone	Function
$A$	Estrogen	Maintenance of secondary sexual characters
Alpha cells of Islets of Langerhans	$B$	Increases blood glucose level
Anterior Pituitary	$C$	Hypersecretion causes gigantism

Match the endocrine glands with their hormones and functions correctly.

Write short notes on the functions of the following hormones: (Any four)
$(a)$ Parathyroid hormones $(PTH)$
$(b)$ Thyroid hormones
$(c)$ Thymosin
$(d)$ Androgens
$(e)$ Estrogens
$(f)$ Insulin and Glucagon