Assertion: Females have less stature than males after puberty.
Reason: This happens because of the presence of $hCG$ in the blood of females.

$A$ single ejaculation contains $...A...$ to $...B...$ million spermatozoa. Semen has a pH of $...C...$ to $...D...$. Its alkalinity helps to neutralize the acidity of the urethra. Here $A, B, C$ and $D$ refer to:

Composition of semen is

Which of the following statements are true about the female reproductive system?
$(A)$ Both estrogen and progesterone are necessary for development of follicle
$(B)$ Progesterone production is under the control of $LH$
$(C)$ The part of the oviduct is isthmus; has a narrow lumen and it joins the uterus
$(D)$ During pregnancy all events of the menstrual cycle stop and there is no menstruation
$(E)$ The graafian follicle ruptures to release the primary oocyte from the ovary by the process called ovulation

Given below are two statements:
Statement $I:$ Vas deferens receives a duct from seminal vesicle and opens into urethra as the ejaculatory duct.
Statement $II:$ The cavity of the cervix is called cervical canal which along with vagina forms birth canal.
In the light of the above statements,choose the correct answer from the options given below:

Cleavage in the mammalian egg is $.........$.