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1 ore 28 min, 7 apr 2020 anni - Placentation

Descrizione:

The placenta is fully developed around 14 - 16 weeks. When this organ becomes fully developed, it is responsible for providing nutrition, excretion, respiration, and endocrine function.

Aggiunto al nastro di tempo:

Research and Report 5 Stages of Reproduction

ByKarina Steinhauser
11 dic 2019

Data:

1 ore 28 min, 7 apr 2020 anni
Adesso
~ 4 years ago
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