单词 | embryonic stage |
释义 | embryonic stage Efforts to make the river more accessible are still in the embryonic stage. Houston Chronicle During the embryonic stage of many insects and the postembryonic stage of primitive insects, 11 abdominal segments are present. Retrieved from Wikipedia CC BY-SA 3.0 It lacks a shell except during its early embryonic stage. Retrieved from Wikipedia CC BY-SA 3.0 However, only cells that are tolerant to self tissue will survive the embryonic stage. Retrieved from Wikipedia CC BY-SA 3.0 They are gelatinous, mostly transparent pteropods, and they only have shells in their embryonic stage. Retrieved from Wikipedia CC BY-SA 3.0 |
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