Organic chemist: Streptomycin and oxytetracycline are two anti-bacterial agents used in commercial farming, and may pose a serious public health risk down the line. These anti-bacterial agents are liberally applied to crops grown for animal feed and, as a result, it is common to find livestock with a build up of the chemicals in their bodies. In fact, levels of the antibiotics in livestock have been found to be up to 100 times what is needed to break down the natural bacterial eco-system of the animal, an outcome that leads to poor health outcomes for the animal and increases the risk of anti-biotic resistant bacterial strains evolving within them.A disease specialist intends to use the chemist’s observations to argue that vancomycin, a compound that breaks down much faster than streptomycin and oxytetracycline, should replace them in the production of livestock feed, reducing the build-up of anti-biotic agents in livestock. Select the information that, if true, would most strengthen the disease specialists’ position, and that which, if true would most weaken it. Make only two selections, one in each column.
Explanation: Upon analyzing all the given options
To StrengthenOption 3:
Streptomycin and oxytetracycline runoff can damage water bodies.This option strengthens the argument by highlighting an environmental hazard associated with the current antibiotics. If streptomycin and oxytetracycline runoff damages water bodies, switching to vancomycin, which breaks down faster, could mitigate this environmental impact.
To WeakenOption 4:
Vancomycin is effective against a narrower range of bacteria than streptomycin and oxytetracycline areThis option weakens the argument because it suggests that vancomycin may not be as effective in controlling bacterial infections in livestock compared to streptomycin and oxytetracycline. This could potentially lead to increased bacterial infections and poorer health outcomes for livestock, outweighing the benefits of faster breakdown.
Rest of the options either don't provide strong enough reasoning to either strengthen or weaken the specialist's position.
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