[[緊急 ` 10分 ]] Yeast 既成分??

http://en.wikipedia.org/wiki/Yeast
這個網一定幫到你^^

2007-04-23 21:35:50 補充：
希望你選我最佳^^!!

2007-04-23 21:36:34 補充：
http://www.yeastgenome.org/VL-what_are_yeast.html

2007-04-23 21:37:27 補充：
Yeast are unicellular fungi. The precise classification is a field that uses the characteristics of the cell, ascospore and colony. Physiological characteristics are also used to identify species.

2007-04-23 21:38:10 補充：
Yeasts are characterized by a wide dispersion of natural habitats. Common on plant leaves and flowers, soil and salt water. Yeasts are also found on the skin surfaces and in the intestinal tracts of warm-blooded animals, where they may live symbiotically or as parasites.