1.There are 5 stages during the development of embryo, including the stage of 2-celled proembryo, multicellular proembryo, globular proembryo, pyriform proembryo, differential embryo and mature embryo.
胚胎发育经过二细胞原胚、多细胞原胚、球形原胚、
形原胚、分化胚
成熟胚阶段。
形的声明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审
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