The prefix is micro.
Micro is a prefix
"Micro micro" was an older designation used for a metric prefix that is now known as the prefix "pico," which represents one trillionth (1/1,000,000,000,000). The use of "micro micro" was eventually replaced by the standardized SI prefixes to avoid confusion.
The metric system prefix for the quantity 0.001 is Milli.
Micro
Micro- is prefix, Organism is the root word and this word has no suffix.
Smallest has a suffix and a root word / base word but no prefix. Root Word / Base Word: small. Suffix: est. Prefix: None.
The prefix meaning for small is "micro-" or "mini-".
The prefix "micro" means "a millionths of".
The prefix micro-, as in micrometre, or microsecond, refers to 10-6, or one millionth, of the whole.
The prefix indicating a millionth is micro.
"Micro" is a prefix that means small or on a very small scale. It is commonly used in various fields such as microbiology, microeconomics, and microcomputing to indicate something tiny or at a microscopic level.