Females are also capable of reproducing asexually. Females of many species are known to be capable of reproducing asexually through thelytokous parthenogenesis. Planarian flatworms have both sexually and asexually reproducing types. Phonograph cylinders are the earliest commercial medium for recording and reproducing sound. Each mutation that arises in asexually reproducing organisms turns the ratchet once. Color photography is photography that uses media capable of capturing and reproducing colors. Both sets were capable of reproducing reasonably accurate, monochromatic moving images. Spermatozoa are the mature male gametes in many sexually reproducing organisms. Lithography was initially created to be an inexpensive method of reproducing artwork. The term autopoiesis () refers to a system capable of reproducing and maintaining itself. This was due to difficulties in the mastering process in reproducing the minimal soundscapes. The tape was wide and thick running at past the recording and reproducing heads. It works by preventing bacteria from reproducing through the inhibition of protein synthesis. This is a consequence of the fact that gametes from sexually reproducing species are haploid. The spt is important for perceiving and reproducing sounds.