Summary DescriptionAPI English: Photomicrograph of different stages of Volvox asexual reproduction. A-Daughter colonies, B-Zygote, C-Egg, D-Vegetative cells. Scale=0.1mm. Date 7 October 2014, 13:08:56 Source Jon Houseman and Matthew Ford Author Jon Houseman Other versions Original (unlabeled) This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Balance (Color, brightness, and contrast) and adjust background color.