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Veröffentlicht: 2019-11-05 16:08:24.967384 Kategorie: Science Typ: Video Laufzeit: 15.16 sec. Model release: NEIN
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Sperm under the microscope, the movement of sperm cells in the seminal fluid, spermatozoa are the gamete male reproductive cell, have the ability to actively move and serve to fertilize the female egg

Contributor: shoma81
ID : 300681201