When they’re not growing in a culture as mentioned, they’re actually spread out a bit. They’re relatively translucent, also, meaning they don’t have much color to them. Under a microscope, you can see straight through them and all their internal workings. They typically spread out randomly, aside from avoiding competing colonies and other things that would eat or kill them, so they aren’t “heaped up”, but more spread out like a handful of sand on a countertop.
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