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vaieri [72.5K]
3 years ago
10

Consider a culture medium on which only gram-positive organisms such as Staphylococcus aureus colonies can grow due to an elevat

ed NaCl level. A yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the pH as a result and changing the color of a pH indicator chemical. This type of medium would be referred to as a(n) _________.
Biology
1 answer:
riadik2000 [5.3K]3 years ago
7 0

Answer:

selective and differential medium .

Explanation:

Based on the information provided within the question it seems that this type of medium would be referred to as a selective and differential medium . This is because such high NaCL levels are designed to stimulate and allow selective bacteria to grow, while also differential media because the fermented sugar is giving off a yellow halo which allows for the differentiate between the bacteria.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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