chiropractor 发表于 2025-3-25 06:51:16
http://reply.papertrans.cn/59/5801/580033/580033_21.pngMystic 发表于 2025-3-25 09:10:21
http://reply.papertrans.cn/59/5801/580033/580033_22.pngGlucose 发表于 2025-3-25 15:13:57
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http://reply.papertrans.cn/59/5801/580033/580033_25.pngsleep-spindles 发表于 2025-3-26 01:18:22
Echinoderms: Adults and Larvaeof adults and larvae. These inconsistencies occur in trying to assess the relatedness, first, of the echinoderms to other phyla, second, of classes within the echinoderms, and, finally, of several pairs of species within the same class. I hope to show that these inconsistencies are resolved by the s污秽 发表于 2025-3-26 07:00:10
http://reply.papertrans.cn/59/5801/580033/580033_27.pngDelectable 发表于 2025-3-26 11:14:46
http://reply.papertrans.cn/59/5801/580033/580033_28.pngCRUE 发表于 2025-3-26 15:21:15
Echinoderms: Sea-Urchins and Brittle-Stars restricted coeloms, but the majority of species in both classes have a unique form of larva, the pluteus. Its uniqueness lies in its internal skeleton of slender calcareous rods that supports its ciliated arms. Hyman (1955, p. 700), in her volume on ., thought it impossible to account for the occur本土 发表于 2025-3-26 19:58:49
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