Select the correct option describing gonadotropin activity in a normal pregnant female.
High level of $FSH$ and $LH$ stimulates the thickening of endometrium.
High level of $FSH$ and $LH$ facilitates implantation of the embryo.
High level of $hCG$ stimulates the synthesis of estrogen and progesterone.
High level of $hCG$ stimulates the thickening of endometrium.
Given below are two statements: One is labelled as Assertion $A$ and the other is labelled as Reason $R$ :
Assertion $A$ : Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby.
Reason $R$ : Colostrum contains several antibodies absolutely essential to develop resistance for the new born baby.
In the light of the above statements, choose the most appropriate answer from the options given below:
Signals for parturition originate from
Parturition is
Which of these is not an important component of initiation of parturition in humans?
Hormone, which is responsible for contraction of uterus is