" The period from conception to implantation of eh embryo is called:

Correct option is D

The period from conception to implantation of the embryo is known as the germinal stage. This stage lasts from fertilization (conception) until the zygote implants into the uterine wall, typically within the first two weeks of pregnancy. During the germinal stage, the fertilized egg undergoes rapid cell division and begins its journey from the fallopian tube to the uterus, where it implants and prepares for the next stages of development.
Information Booster:
· The germinal stage involves crucial steps like the formation of the zygote, early cell division (cleavage), and implantation into the uterus. After implantation, the development proceeds into the embryonic stage.
Additional Knowledge:
(a) Conception stage: Conception is the moment when the sperm fertilizes the egg, but the term does not cover the full period from conception to implantation.
(b) Embryonic stage: The embryonic stage follows the germinal stage and lasts from implantation through the eighth week of pregnancy, during which the basic structures of the body form.
(c) Fetal stage: The fetal stage begins after the embryonic stage, starting from the ninth week of pregnancy and continuing until birth, marked by the growth and maturation of the fetus.