Parameter Tree:
EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > FUNGI > YEASTS/TRUFFLES

Definition:
Yeasts are members of the Ascomycota Division. Yeasts are unicellular and
they reproduce asexually by budding.  


Reference:
Gould, J. and W.Keaton. 1996. Biological Science. W.W. Norton and Company. New
York, New York.