Which of these diseases would most likely be identified by viewing a stained blood smear in a light microscope?
A. Ebola hemorrhagic fever
B. Dengue fever
C. HIV
D. Chagas disease
Answer: D
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Foraminifera are a type of protist that
A. cause malaria. B. are associated with human disease. C. help in estimating the age of ocean deposits. D. move by means of flagella.
Which is an accurate statement about the anatomy of the human excretory system?
a. Bowman's capsule is a network of capillaries inside the glomerulus. b. The proximal tubule is the portion of the nephron tubule farthest from Bowman's capsule. c. The renal cortex, which contains the nephrons, is interior to the renal medulla. d. The loop of Henle is located between the proximal tubule and the distal tubule. e. The distal tubule of a nephron connects with the renal pelvis of the kidney via the ureter.
A person is infected with HIV. The individual is treated with several drugs, including azidothymidine (AZT). Which of the following is the most immediate effect of this drug?
A. It allows reverse transcriptase to proofread, and this will allow successful treatment with a vaccine. B. It does not allow the virus to make a DNA copy of its genome. C. It does not allow the viral genome to become integrated into the host genome. D. It inhibits formation of the capsid. E. It inhibits budding, as it is the reverse of the process by which HIV enters a cell.
What percent of implanted clone embryos
survive to be born alive? a. 2. b. 5. c. 10. d. 25. e. 50.