Which of the following statements is false?
A. The use of antibiotics causes mutations in
bacteria for antibiotic resistance.
B. Once evolved, antibiotic resistance can be
passed between different species of bacteria.
C. Failure to complete a course of antibiotics
selects for pathogens that are least
susceptible to antibiotics.
D. Some diseases, such as tuberculosis,
have strains that are so antibiotic resistant
that they are essentially untreatable.
E. None of the answer options is false.
A
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Double-stranded DNA will separate into two strands when exposed to
A. high temperature. B. high pH. C. low temperature. D. low salt. E. high temperature AND high pH.
What mineral compound allows bones to resist compression and support body weight?
a. collagen
b. fibronectin c. hydroxyapatite d. chondroitin sulfate e. osteoclast
Lately, many claims concerning the health benefits of green tea have appeared in the news. Suppose you read a claim that says drinking green tea causes weight loss
The information provided states that participants were weighed at the beginning of the study, were then asked to drink 2 cups of green tea every day for 6 weeks, and finally were weighed at the end of the study. Participants who drank the tea for 6 weeks seemed to have lost some weight by the end of the study, so the researchers concluded that green tea is helpful for weight loss. This study has some obvious holes in it. Explain three things that could be done to improve the design of this study. Do not assume any information other that what has been provided.
You can ask your doctor ________
A) whether your new medication will interact with any dietary supplements you are taking B) what to do if you do not receive your test results C) whether your weight or blood pressure is in a healthy range D) All of the above are true.