Yeasts, molds, and mushrooms are all different kinds of what?
fossil
pollen
bacteria
fungi
Yeasts, molds, and mushrooms are all different kinds of fungi. There may be as many as 1.5 million species of fungi ( Figure below ). You can easily see bread mold and mushrooms without a microscope, but most fungi you cannot see. Fungi are either too small to be seen without a microscope, or they live where you cannot see them easily—deep in the soil, under decaying logs, or inside plants or animals. Some fungi even live in, or on top of, other fungi.