Order the metric prefixes from the largest factor to the smallest factor.

### The order 1. **Micro (µ), $10^{-6}$.** This is the largest of the three factors because $10^{-6}$ is greater than the smaller powers shown next. 2. **Nano (n), $10^{-9}$.** This is one thousand times smaller than micro. 3. **Pico (p), $10^{-12}$.** This is one thousand times smaller than nano. ### The concept A more negative exponent on ten represents a smaller positive fraction. These prefixes let you express biological measurements at different scales without writing many leading zeros. ### Terms - **Micro (µ)**: a prefix meaning $10^{-6}$. - **Nano (n)**: a prefix meaning $10^{-9}$. - **Pico (p)**: a prefix meaning $10^{-12}$. ### Remember Among these prefixes, micro is largest and pico is smallest.