Antibiotics that kill large numbers of gram-negative bacteria are primarily aminoglycosides and some higher generation cephalosporins. The major medical concern in antibiotic usage is antimicrobial resistance which can arise with improper use of antibiotics. On the other hand, higher generation antibiotics that are proven bactericidal can have more detrimental adverse effects for the patient.
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In 1815, British and Prussian forces crushed Napoleon's forces after his return from exile. His loss at Waterloo would be his last. Napoleon was forced to abdicate
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Honeybees are considered to be good/vital pollinators since for their whole life, they had been collecting honey.
I think the answer is A. Usually people hunt bison so i think over hunting is whats causing the decimated of the bison.