A: 14
B: 1
C: 990
D: 145 km
E: 3.4
F: 250
Just getting points. sorry, not that far in science!
The antibiotic penicillin is isolated from <u><em>Penicillium notatum</em></u> 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.
Learn More:
For more on antibiotics check out;
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The reaction of the calcium metal with potassium chloride is a displacement reaction, which results in the formation of the calcium chloride, and potassium ions. This reaction can be written as follows in a balanced form:
(s) + 2KCl(aq) → Ca (s) + 2 (aq)
The equation now on the right and left side of the reaction are both balanced and equal. Hence, the correct answer is 'Option A'.