In scyphozoan jellyfish, the free-swimming medusa form is the dominant stage, with the sessile polyp form found only during larval development.
自由游泳水母见于各洋,包括常见沿岸线漂形动(甲壳动)。
In the adult, or medusa stage of a jellyfish, they can reproduce sexually by releasing sperm and eggs into the water, forming a planula.
蜇成体或水母体阶段,它们通过将精子和卵于释放到水中形成浮浪幼体而进行有性繁殖。
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