During the course of development, cells in various regions of embryo become variable in morphology and eventually perform diverse functions. This process is known as

  • [AIPMT 1989]
  • A

    Rearrangement

  • B

    Differentiation

  • C

    Metamorphosis

  • D

    Organisation

Similar Questions

Match the columns

Column $I$ Column $II$
$(a)$ Third week $(1)$ Development of pre umbilical code
$(b)$ Third month $(2)$ Body develops but head remains big
 $(c)$ Fourth week $(3)$ Embryonic slit widens
$(d)$  Fourth month $(4)$ Muscles activate

$A$ : If fertilization occurs, the corpus luteum is rescued from regression by human chorionic gonadotropin, which is produced by placenta.
$R$ : In first trimester the corpus luteum stimulates by $hCG$ is responsible for the production of progesterone.

During pregnancy which of the following is secreted through urine of mother

  • [AIEEE 2003]

In Human beings, at the end of $12$ weeks (first trimester) of pregnancy, the following is observed 

  • [NEET 2020]

Relaxin hormone is produced from