Bacteria
Bacteria are prokaryotic organisms, lacking DNA and organelles, that may either make up a kingdom or a domain. Bacteria were among the first life forms on Earth and inhabit the Bacteria Kingdom, comprising a multitude of habitats. Bacteria come in many unique shapes and sizes, ranging the circular coccus to the elliptical bacillus to various spiral-shaped bacteria. They're the baby juniors of nature...
Culture
Bacteria are grown in cultures.
Culture
A bacteria emoji is often used to signify approval of something.