Embryonic period of development is -
Ans. is 'd' i.e., Upto 8 weeks o The embryonic period of development extends from the 4th to 8th week of gestation and is also called the period of organogenesis.3 phases of development1. Pre-embryo phase (germinal phase) - day 0 to week 32. Embryo phase - weeks 4-83. Foetal phase - weeks 8-38o Pre-embryo phase divided into,1. Ovulation2 Fertilization and implantationStage of bilaminar germ disc (2nd week)Stage of trilaminar germ disc (3rd week)
Fertilization and Development of Embryo
Upto 16 weeks
Upto 12 weeks
Upto 10 weeks
Upto 8 weeks
Upto 8 weeks