placenta造句

Starch grains present in the embryo sac and placenta are utilized by the embryo.
存在于胚囊和胎座中的淀粉粒为胚胎所利用.

What is dried human placenta, in the abdomen fetal?
紫河车是什么, 腹中胎儿?

A stalk connecting an ovule or a seed with the placenta.
珠柄与胚珠或含胎座的种子相接的叶柄.

• #placenta