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I inoculated nutrient agar with bacillus subtilis and it made a dark green colour on agar plates.
Eosin Methylene Blue (EMB) Agar: is a selective AND a differential medium. The selective components are the eosin and methylene blue dyes that inhibit the growth of Gram-positive bacteria and permit the growth of Gram-negative enteric rods. The differential component of the medium is lactose, which is a sugar that some organisms can ferment as an energy source.