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Do you mean "agar plates"? Agar agar is a seaweed that, when boiled, makes a product similar to Gelatin. This stuff is edible, so vegans who liked jello can have it. It's used by boiling it in water, adding things to it, pouring it into petri dishes and letting it harden to use in making bacteria cultures. Some of the things that are added to it are beef broth--"nutrient agar"--and blood--"blood agar."

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15y ago

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