What are the most important reasons for the return of tuberculosis as a public health threat worldwide are:
A. HIV infection and increase in multi-drug resistant tuberculosis strains
B. Vaccine failure and Mycobacterium avium infection
C. Immigration from endemic areas and failure of public health systems
D. HIV infection and increase in multi-drug resistant tuberculosis strains; and immigration from endemic areas and failure of public health systems
E. Vaccine failure and Mycobacterium avium infection; and immigration from endemic areas and failure of public health systems
Ans: D. HIV infection and increase in multi-drug resistant tuberculosis strains; and immigration from endemic areas and failure of public health systems
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Which of the following group is most closely related to mammals?
A. Reptiles B. Amphibians C. Lancelets D. Cartilaginous fishes
The name given to Milton Friedman, his colleagues, and to the free market doctrine they taught is:
A) Austrian School. B) positivist school. C) conflict school. D) Chicago School.
The neuromast cells are part of the system to
a. process light. b. sense electrical currents in the water. c. control balance. d. detect vibrations. e. detect dissolved chemicals.
DNA sequences comprising open reading frames (ORFs) correspond to the coding regions of genes called
____________________. Fill in the blank(s) with the appropriate word(s).