绝缘 发表于 2025-3-30 08:28:17

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Intervention 发表于 2025-3-30 15:14:57

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Irascible 发表于 2025-3-30 19:40:00

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VERT 发表于 2025-3-30 22:37:48

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巩固 发表于 2025-3-31 03:00:49

F. Fay,G. Long,M. Thiault,L. Trabauda part of the kidney reserved for the passage of sperm. Then the sperm duct (. = Wolffian duct) takes the sperm and leads them to the cloaca (.) and urinary bladder (.) whence they can reach the outside. The eggs, in comparison, must complete a much more eventful and obstacle-ridden course within th

watertight, 发表于 2025-3-31 05:28:28

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fertilizer 发表于 2025-3-31 11:39:20

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BINGE 发表于 2025-3-31 17:15:31

https://doi.org/10.1007/978-3-476-99484-4 the nucleus cannot function by itself, but only in cooperation with the cytoplasm. The question which now poses itself is: can we locate the boundaries of the nuclear and cytoplasmic spheres of influence? Theodor Boveri designed an experiment which he believed must provide the answer. He combined m

Prognosis 发表于 2025-3-31 20:46:08

Der sozialpsychische Organismus,g destined to form the gonad. Once there, they enter upon one of two paths of differentiation, leading towards either egg or sperm. At the completion of metamorphosis (4–6 months in many amphibian species) the young newts and frogs are still very small. They grow quite slowly, and it takes two to th

Melanoma 发表于 2025-4-1 01:43:47

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查看完整版本: Titlebook: Experimental Studies of Amphibian Development; Ernst Hadorn Textbook 1974 Springer-Verlag Berlin Heidelberg 1974 Regeneration.biology.cell