In scyphozoan jellyfish, the free-swimming medusa form is the dominant stage, with the sessile polyp form found only during larval development.

 
  • 自由游泳的水母見(jiàn)于各海洋,包括常見(jiàn)的沿海岸線(xiàn)漂流的盤(pán)形動(dòng)物(如甲殼動(dòng)物)。
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