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  1. Os placentários (latim científico: Placentalia) constituem uma infraclasse de animais mamíferos.

  2. en.wikipedia.org › wiki › PlacentaliaPlacentalia - Wikipedia

    Placental mammals (infraclass Placentalia / p l æ s ə n ˈ t eɪ l i ə /) are one of the three extant subdivisions of the class Mammalia, the other two being Monotremata and Marsupialia. Placentalia contains the vast majority of extant mammals, which are partly distinguished from monotremes and marsupials in that the fetus is ...

  3. Os escandentes ou escandêncios ( Scandentia, do latim scandens, "aquele que escala, trepa, sobe") são uma ordem de mamíferos placentários com uma ou duas famílias (a depender do autor), Tupaiidae e Ptilocercidae, e 18 espécies distribuídas por 6 géneros.

    • Mammalia
    • Placentalia
    • Chordata
    • Animalia
  4. en.wikipedia.org › wiki › PlacentationPlacentation - Wikipedia

    During pregnancy, placentation is the formation and growth of the placenta inside the uterus. It occurs after the implantation of the embryo into the uterine wall and involves the remodeling of blood vessels in order to supply the needed amount of blood. In humans, placentation takes place 7–8 days after fertilization.

  5. en.wikipedia.org › wiki › PlacentaPlacenta - Wikipedia

    The placenta ( pl.: placentas or placentae) is a temporary embryonic and later fetal organ that begins developing from the blastocyst shortly after implantation.

  6. Os placentários (latim científico: Placentalia) constituem uma infraclasse de animais mamíferos.