In this picture are millions and millions of bacteria. No matter how much I clean the countertops, once an object or hand is placed on it, more bacteria live there. Bacteria is a prokaryote which are cells that do not have a nucleus or membrane bound organelles. Prokaryotic cells are way smaller compared to eukaryotic cells, which are the cells in our body not on our body. Bacteria is on our skin every day, and although the term has a negative connotation, some bacteria are actually good for us. After all, it is believed that the earth started from a speck of dust that was a prokaryotic bacteria.
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