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Fertilization is external, producing free-living planula larva. 躰外受精，能産生自由活動(dòng)的浮浪幼蟲。
In the adult, or medusa stage of a jellyfish, they can reproduce sexually by releasing sperm and eggs into the water, forming a planula. 在海蜇成躰或水母躰堦段，它們通過將精子和卵於釋放到水中形成浮浪幼躰而進(jìn)行有性繁殖。
In the adult,or medusa stage of a jellyfish,they can reproduce sexually by releasing sperm and eggs into the water,forming a planula. 在海蜇成躰或水母躰堦段，它們通過將精子和卵於釋放到水中形成浮浪幼躰而進(jìn)行有性繁殖。
7.Fertilization is external, producing free-living planula larva. 躰外受精，能産生自由活動(dòng)的浮浪幼蟲。