Which of the following hormones is not a secretory product of human placenta?
Human chorionic gonadotropin
Prolactin
Oestrogen
Progesterone
Which one of the following statements with regard to embryonic development in humans is correct?
Placenta acts like a
In Human beings, at the end of $12$ weeks (first trimester) of pregnancy, the following is observed
After one month of pregnancy, the embryo's $...A....$ is formed. By the end of the $.....B...$ month of pregnancy, the foetus develops limbs and digits. By the end of $\ldots$... most of the major organ systems are formed for example, the limbs and external genital organs are well-developed. By the end of $...D....$ the body is covered with fine hair, eyelids separate, and eyelashes are formed. Here$ A$ and $D$ refers to
By the and of the second month of pregnancy the foetus develops........