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2 years ago

The antibiotic penicillin is isolated from

Biology

1 answer:

kykrilka [37]2 years ago

4 0

The antibiotic penicillin is isolated from Penicillium notatum fungi

Penicillin was first discovered in 1928 and was used at St. Mary's Hospital, London, by Alexander Fleming to heal wounds due to its antibacterial properties.

Explanation:

Fungi and bacteria usually produce antibiotics (as secondary metabolites) for defense mechanism. They do so to limit competition for resources with other neighboring fungi or bacteria in their environment. This is why when a fungus or bacteria establishes itself in an environment, you hardly see other fungi or bacteria types growing in their vicinity.

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katrin2010 [14]

Answer:

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Explanation:

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For the other options:

The amount of noise. This can modified by the use or not of headphones and is the independent variable, subject to modification.
The type of music the employees listen to while they work. Does not represent dependent or independent variable.
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