1. Is the fault in the components that perform any physical action?
Answer: Yes
2. Is the fault in components that move?
Answer: No
3. Is the fault in the mechanisms controls?
Answer: No
4. Does the faulty component responsible for visual data acquisition?
Answer: Yes
5. Is the faulty component only a part of the optics system?
Answer: No
37) Chinese Mystery Snail, Bellamya chinensis
Chinese mystery snails can be found in southeast Asia, Japan, eastern Russia, and the United States (Kipp et al.). Chinese mystery snails have the ability of regenerating their eye if they were to get amputated or damaged.
The mystery snail has the ability of regenerating its eye from the mid-eyestalk. Once the eye has been amputated the integumentary epithelium folds back on itself to form a shallow cleft which houses epithelial cells (Bever & Borgens). These epithelial cells undergo transdetermination which switches the progenitor cell to a closely related cell type (Manohar & Lagasse). The newly switched cells then proliferate and differentiate into the various parts of the eye. It has been found that the cells differentiate into the retina and new lens by day 14 of postamputation (Bever & Borgens). The new cells also form the tissues that surround the eye and give it structure. When the eye has regenerated completely the cells will stop proliferating and differentiating.
Kipp, R.M., A.J. Benson, J. Larson, and A. Fusaro. Cipangopaludina chinensis malleata. USGS Nonindigenous Aquatic Species Database, Gainesville, FL. 2014. Web. 3 Dec. 2014
http://nas.er.usgs.gov/queries/factsheet.aspx?SpeciesID=1045
Bever, M. M., and R. B. Borgens. “Eye Regeneration in the Mystery Snail.” The Journal of Experimental Zoology 245.1 (1988): 33-42. NCBI. Web. 3 Dec. 2014.
http://www.ncbi.nlm.nih.gov/pubmed/3351443
Manohar, Rohan, and Eric Lagasse. “Transdetermination: A New Trend in Cellular Reprogramming.” Molecular Therapy 17.6 (2009): 936-38. Nature. Web. 3 Dec. 2014.
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