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: No
5. Is the faulty component used for sensing the location of objects?
Answer: No
6. Is the faulty component responsible for sound reception?
Answer: No
7. Is the faulty component responsible for decoding information?
Answer: Yes
Path 2:
1. Is the fault in the components that allow the mechanism to perform its mission?
Answer: Yes
2. Is the fault in components that move?
Answer: Yes
3. Is the fault in components that make the mechanism move?
Answer: Yes
4. Is the faulty component a part of a larger mechanism designed to move?
Answer: No
5. Is the component designed to move objects, including the mechanism?
Answer: Yes
6. Is the fault component not needed for stability?
Answer: Yes
7. Is the damaged structure removed?
Answer: No
68) House mouse, Mus musculus
House mice are often found near civilizations where they can acquire an easy meal (Messer et al.). Mice have the ability of regenerating their taste buds if they were to ever get damaged.
Scientists have found that there are large numbers of perigemmal and basal epithelial cells in the fungiform section of the taste papillae. These cells are able to go through the mitosis cycle and produce asymmetrical transit amplifying (TA) daughter cells (Miura & Barlow). These cells then divide symmetrically and create immature taste cells that are stored in the taste buds. (Miura & Barlow). Basal keratinocytes also express transcription factors Trp63 which dedifferentiate epithelial stem cells and re-differentiate them into the epithelium of the tongue. Once the taste buds have regenerated the cells will stop proliferating and go back into the quiescent stage of mitosis.
Musser, G., Amori, G., Hutterer, R., Kry_tufek, B., Yigit, N. & Mitsain, G. 2008. Mus musculus. The IUCN Red List of Threatened Species. Version 2014.3. Web. 9 Dec. 2014.
http://www.iucnredlist.org/details/13972/0
Miura, Hirohito, and Linda A. Barlow. “Taste Bud Regeneration and the Search for Taste Progenitor Cells.”Archives Italiennes De Biologies 148.2 (2010): 107-18. NCBI. Web. 9 Dec. 2014.
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