动物胚胎期与亲体局部融合以进行生理交换,促进幼体生长发育；在非卵生哺乳动物中涉及胎盘。
动物胚胎期与亲体局部融合以进行生理交换,促进幼体生长发育；在非卵生哺乳动物中涉及胎盘。
动物胚胎期与亲体局部融合以进行生理交换,促进幼体生长发育；在非卵生哺乳动物中涉及胎盘。
The local fusion of the embryonic stage of an animal to its parent for physiological exchange to promote the growth and development of the young; involves a placenta in non-egglaying mammals.
种子在子房室内附着于胎座的方式。
The manner in which the seeds are attached to the placenta within the ovary locules.
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