The most likely unit for measuring the size of a typical mature yeast cell is micrometer. Micrometer (μm) or micron is unit of length which is 10⁶ times smaller than meter. Yeast cells are very small, usually yeast cells are 3-4 μm, but some species can reach size of 40 <span>μm.</span>
One of the threadlike processes forming the respiratory surface of a gill.
Underwater mountain chains called also known as mid-ocean ridges