CineHuman Development |
| Compre ahoraDe La biología del desarrollo prenatal |
|
Guión: Biologically speaking, "human development begins at fertilization," when a woman and a man each combine 23 of their own chromosomes through the union of their reproductive cells. |
|
Todas las edades en referencia a la fecundación, no al último período menstrual.
|
| < Anterior | Ver fotos instantáneas | Siguiente > |
Human Development
|
Heart and Circulatory System
|
The Folding of the Embryo
|
The Folding of the Embryo
|
Heart Development
|
The Embryo and Yolk Sac
|
|
|