时间:2022-07-30 19:55:18
卵细胞体外人工授精。
external: adj. 1.外部的,外面的;【哲学】外界的,客观的,物 ...
fertilization: n. 1.肥沃化,施肥(法);丰饶化。 2.【生物学】受 ...
External fertilization occurs when gametes are expelled into a watery substrate from the parental bodies before fusion ; it is typical of sporebearing plants
当配子在融合之前从亲本体中排出到有水介质时发生体外受精,这是孢子植物的特征。