Corpus luteum is not found in

Match the hormones listed in List-$I$ with their functions indicated in List-$II$:

List-$I$	List-$II$
$(a)$ $FSH$	$(i)$ Prepares endometrium for implantation
$(b)$ $LH$	$(ii)$ Develops female secondary sexual characters
$(c)$ Progesterone	$(iii)$ Induces uterine wall contraction
$(d)$ Estrogen	$(iv)$ Development of corpus luteum
	$(v)$ Maturation of Graafian follicle

High-pitched voice is a characteristic of which of the following?

Natural parthenogenesis is found in

$A$: $LH$ acts on Sertoli cells for release of certain factors required for spermatogenesis.
$R$: Spermiation occurs directly under the influence of $LH$.

Which of the following statements are correct regarding the female reproductive cycle?
$A$. In non-primate mammals,cyclical changes during reproduction are called the oestrus cycle.
$B$. The first menstrual cycle begins at puberty and is called menopause.
$C$. Lack of menstruation may be indicative of pregnancy.
$D$. Cyclic menstruation extends between menarche and menopause.
Choose the most appropriate answer from the options given below.