twins

                               

                       

                             TWINS

Information: 

we called twins to the two or more living things that born from one gestation.This occurs in the species that in the moment of the delivery it's usual that only one baby born, thats the case of humans.

Characteristics of twins: 

Human twins are babies who share the uterus in the same pregnancy,as often,they born at the same time and together.when a fetus develops only in the matrix, which is the usual case , it says pregnancy is simple but in this case there are less probabilities to complete the time of a common pregnancy.

Types of twins: there are two types of twins depending in how they past the gestation:

1. Monozygotic twins: when a normal embrion originated from the fecundation of an ova and a sperm divides into two parts accidentaly.
2. Dizygotic twins: the ones that born from diferent fecundations

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