Frisky
发表于 2025-3-25 05:26:44
Christopher Chase-Dunn,Andrew Jorgensonnt development of the fertilized oocyte gives rise to the conceptus: embryo, fetus, newborn, and fetal envelopes. The role of genetic factors and their interactions with environmental factors are largely unknown.
绊住
发表于 2025-3-25 09:18:17
Material and Methods,d for all embryos. Embryonic age was calculated from the last normal menstrual period of the mother. The conceptional age was calculated by adding 14 days to the first day of the last menstrual period of the mother if the menstrual cycle was of the regular 28 days’ duration. In some specimens, the term of conception was known from the anamnesis.
思想流动
发表于 2025-3-25 14:36:06
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Communal
发表于 2025-3-25 15:57:18
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PURG
发表于 2025-3-25 21:47:09
Graphene Direct Growth on Si/SiO2 Substratesa, is the coelom. The cavities present within the somites constitute the myocoele. Stellate cells migrating into spaces between germ layers constitute the mesenchyme, most of which is of mesodermal origin. Some mesenchymal cells, especially around the CNS and in the branchial arches, are of neuroectodermal origin.
增减字母法
发表于 2025-3-26 03:02:32
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宏伟
发表于 2025-3-26 05:12:31
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Nibble
发表于 2025-3-26 09:30:42
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侵略
发表于 2025-3-26 13:28:08
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财产
发表于 2025-3-26 18:49:56
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