I know that bacteria is extremely small but more bacteria means bigger ball of bacteria.
In: Biology
You actually can! That’s what a Petri Dish does, it provides an environment where bacteria can reproduce so much that they create a spot visible to the naked eye. That’s also what mold on bread is; just loads of microbes in such a large heap that you can see them.
In most normal situations, you can’t see bacteria because they are quite spread out.
Latest Answers