Which of the following was an emerging mosquito-borne disease in the early 2000s but has now decreased in frequency?
A) malaria
B) Rocky Mountain spotted fever
C) typhus
D) West Nile fever
Answer: D
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When David Baltimore’s lab tried to determine how an RNA tumor virus replicates its genome, they
discovered that
a. these viruses can make DNA without an RNA template b. these viruses can make DNA after being treated with RNase c. these viruses can make more RNA genomes from their RNA genome d. an enzyme (reverse transcriptase) makes DNA from RNA e. an enzyme (reverse transcriptase) makes RNA from DNA
Hormones are effective because they are
A. recognized by specific receptors. B. faster than nervous impulses. C. each effective on every cell in the body. D. produced by the body.
Which of the following is of least importance when concerning the preservation of ecosystems?
What will be an ideal response?
Define "pathogen-associated molecular patterns" (PAMPs) and explain why they are crucial to our body's immune response against pathogens? Limit your answer to two sentences
What will be an ideal response?