embryos造句

Evolution can explain why human embryos look like gilled fishes.
进化论能够解释为什么人类的胚胎看起来象除去了内脏的鱼一样.

A sharp demarcation of adventive embryos from zygotic embryos cannot be drawn.
不定胚与合子胚之间不能划分出明显的界限.

Most grass embryos have a flap - like structure known as the epiblast.
大多数禾本科胚有一片瓣 状 结构通常称为外胚叶.

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