CineThe Embryonic Period |
Compre ahoraDe La biología del desarrollo prenatal |
Guión: During the first 8 weeks following fertilization, the developing human is called an embryo, which means "growing within." This time, called the embryonic period, is characterized by the formation of most major body systems. |
Todas las edades en referencia a la fecundación, no al último período menstrual.
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