Antibiotics kill bacteria but they won't kill ringworm which is most likely the reason why it is so hard to eliminate the ringworm disease.. Hope this helps!
Approximatelt 750,000 teens become daily smokers each year, of which almost <span>250,000 will die from a smoking related disease.
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Drug addiction is a chronic disease characterized by compulsive, or uncontrollable, drug seeking and use despite harmful consequences and changes in the brain, which can be long lasting. These changes in the brain can lead to the harmful behaviors seen in people who use drugs. Drug addiction is also a relapsing disease. Relapse is the return to drug use after an attempt to stop.
Answer:
in controlled experiment an independent variable is systematically manupulated and dependent variable is measured ; any extraneous variables are controlled
