水母是腔肠动物部的成员。
珊瑚石：珊瑚石，珊瑚是一种生活在海洋里体态玲珑，色彩高雅的腔肠动物，名曰珊瑚虫。
Coral rock: coral rock, coral is a kind of life in the sea posture is exquisite, colour elegant coelenterate, called polyps.
格蕾丝说，那是些属于水母的高空腔肠动物。
腔肠动物的刺针对于外界的刺激很敏感。
The stings of coelenterates are quite sensitive towards outside stimulation.
水螅型珊瑚虫，水螅虫一种有柱状身体和通常被触角包围的口部开口的腔肠动物，比如水螅或珊瑚虫。
A coelenterate, such AS a hydra or coral, having a cylindrical body and an oral opening usually surrounded by tentacles.
以世代交替为特色的腔肠动物；通常群居的水螅阶段先于水母阶段；水螅和水母。
Coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes.
而腔肠动物的出现标志着真后生动物的开始，在生物起源演化历程上占据着极其关键的位置。
Therefore, it has the prominent position in the origin and evolutionary history of organisms. Perhaps the star-like organism represents the early types of coelenterate with original tentacles.
这种体制见于部分多孔动物和多数腔肠动物，它们营固着生活或浮游生活，能够从身体的任何一面感受刺激或取得食物。
This system found in some animals, and most of the coelenterate porous, they are Camp fixation living or planktonic life, from either side of the body to stimulate feelings or obtain food.
浮浪幼体腔肠动物其扁平的，能自由浮游的，有纤毛的幼体。
浮浪幼体腔肠动物其扁平的，能自由浮游的，有纤毛的幼体。
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