If both ovaries are removed from a female,which hormone level will decrease?

Arrange the components of the mammary gland from proximal to distal:
$(a)$ Mammary duct
$(b)$ Lactiferous duct
$(c)$ Alveoli
$(d)$ Mammary ampulla
$(e)$ Mammary tubules
Choose the most appropriate answer from the options given below:

Match the following columns:

Column-$I$	Column-$II$
$P$. Infundibulum	$I$. Narrow part of oviduct
$Q$. Ampulla	$II$. Wider part of oviduct
$R$. Isthmus	$III$. Funnel-shaped part of oviduct

In the female reproductive system,a tiny finger-like structure which lies at the upper junction of the two labia minora above the urethral opening is called

$A$: The vaginal orifice is partially covered by a membrane called the hymen.
$R$: It is made up of a thick layer of smooth muscle.

The mammary glands are paired structures that contain glandular tissue and a variable amount of fat. The correct sequence of tissues involved in the synthesis and flow of milk is: