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Some fine art, clip art is still sold on a rights managed basis. However this type of image rights has seen a steep decline in the past 20 years as royalty free licenses have become the preferred model for clip art. Public domain images continue to be one of the most popular types of clip art because the image rights are free.
Media in category "Images of butterflies and moths" This category contains only the following file. Plate II Kallima butterfly from Animal Coloration by Frank Evers Beddard 1892.jpg 1,695 × 2,722; 1.77 MB
Gender symbols on a public toilet in Switzerland. A gender symbol is a pictogram or glyph used to represent sex and gender, for example in biology and medicine, in genealogy, or in the sociological fields of gender politics, LGBT subculture and identity politics.
The XY sex-determination system is a sex-determination system present in many mammals, including humans, some insects (), some snakes, some fish (), and some plants (Ginkgo tree).
For example, there are moths and butterflies that are ZW, but some have been found female with ZO, as well as female with ZZW. [22] Also, while mammals deactivate one of their extra X chromosomes when female, it appears that in the case of Lepidoptera , the males produce double the normal amount of enzymes, due to having two Z's. [ 22 ]
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Photographic and light microscopic images: Zoomed-out view of an Aglais io. Closeup of the scales of the same specimen. High magnification of the coloured scales (probably a different species). Electron microscopic images: A patch of wing: Scales close up: A single scale: Microstructure of a scale: Magnification: Approx. ×50 Approx. ×200 × ...
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