Part of this adaptation is a response by the embryo to the nutrition it receives through the placenta.

这种适应部分是这种适应是胚胎通过胎盘吸收营养的一种反应。

youdao

Part of this adaptation is a response by the embryo to the nutrition it receives through the placenta.

这种适应部分是这种适应是胚胎通过胎盘吸收营养的一种反应。

youdao