8 XXX : Sexy_Ed

On the chalkboard, the class has been instructed to draw spermatozoa from their own observation. This will require a sample and an appropriate method of magnification. Although movement might be visible with sufficient lighting at 40x magnification, 400x magnification is necessary to identify structures properly. A fresh sample comes in its own medium, which makes slide preparation very easy. ....I apologize if this is not the sexy ed that is expected in this sub.