Here's a breakdown:
* Sac fungi: This refers to the phylum Ascomycota, which includes a wide range of fungi, including yeasts. They are called sac fungi because they produce spores in sac-like structures called asci.
* Single-celled: Yeasts are unicellular organisms, meaning they consist of only one cell.
* Asexual reproduction by budding: This is the primary mode of reproduction for yeasts. In budding, a small outgrowth (bud) forms on the parent cell. The bud grows and eventually detaches from the parent cell, becoming a new, independent yeast cell.
Examples of yeasts:
* *Saccharomyces cerevisiae* (baker's yeast)
* *Candida albicans* (a common cause of yeast infections)
While budding is the most common form of asexual reproduction in yeasts, they can also reproduce sexually under certain conditions.
