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Studies on status of sperm of Macrobrachium ni pponense during the process of reproductive evolution in Caridea .

日本沼虾精子在真虾部Caridea生殖进化中地位的研究。

Chromatoid bodies existed at all stages of spermatogenic cells except in spermatids.

在精子细胞阶段之前的各期生精细胞中都存在拟染色体。

Most birds mate by joining their cloacas in a "cloacal kiss"; muscular contraction s transfer the sperm from the male to the female.

但多数鸟类仅以泄殖腔互相接触,藉肌肉收缩而把雄鸟的精子送给雌鸟。有胎盘哺乳动物及多数硬骨鱼无泄殖腔。

Most Birds mate by joining their cloacas in a "cloacal kiss"; muscular contractions transfer the sperm from the male to the female.

但多数鸟类仅以泄殖腔互相接触,藉肌肉收缩而把雄鸟的精子送给雌鸟。有胎盘哺乳动物及多数硬骨鱼无泄殖腔。

Objective: To investigate changes of epididymal epithelium and sperm parameters in adult rat after CdCl2 exposure.

目的:探讨氯化镉(CdCl2)对大鼠附睾组织学和附睾精子参数的影响。

Objective To study the relationship between sperm shape,function and infertility in patients with gonococcal infection.

目的 研究淋球菌感染患者精子形态、功能与不育的关系。

We observed testes, epididymis, ovaries, oviducts and uteri in six species of microbats by the Haematoxylin and Eosin staining of frozen tissue sections and found that sperm storage in five of the 6 species.

采用冰冻切片和苏木精-伊红染色法,观察了6种蝙蝠的睾丸、附睾、卵巢、输卵管和子宫,发现5种蝙蝠有精子储存现象。

A hermaphroditic reproductive organ that produces both sperm and eggs,found in certain gastropods.

卵精巢雌雄同体的再生器官,可以产精子和卵子,在腹足纲软体动物身上发现

A hermaphroditic reproductive organ that produces both sperm and eggs,found in certa in gastropods.

卵精巢雌雄同体的再生器官,可以产精子和卵子,在腹足纲软体动物身上发现

The changes in sperm ultrastructure of male Xylotechus rusticus irradiated by γ-rays on larval,pupal and imaginal stage had been studied.

研究了青杨脊虎天牛幼虫、蛹和成虫阶段受γ射线辐照后雄虫精子超微结构的变化情况。

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