Which of the following is the mechanism of action of cyclosporine?

A) It blocks the complement cascade.
B) It blocks the activity of activated Th1 T cells.
C) It directly blocks CTL activity.
D) It interferes with activation of Th2 T cells.
E) It is an anti-inflammatory interfering with leukotriene function.


B

Biology & Microbiology

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In the stomach, food processing continues and secretions from stomach glands aid the initial digestion of

A. carbohydrates. B. lipids. C. nucleic acids. D. proteins. E. vitamins.

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As compared to the circulatory system of most fishes, the circulatory system of adult amphibians has the advantage of  

A.  a four-chambered heart. B.  complete separation between oxygenated and deoxygenated blood. C.  partially-separate circuits for gas exchange and systemic delivery of blood. D.  a pocket of the gut that serves as an air bladder. E.  a single circuit.

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The first plants to produce seeds evolved during which time period?

a. Mesozoic era b. Cenozoic era c. Jurassic period d. Devonian period e. Cretaceous period

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The least common type of skin cancer mentioned in the text, but the one that must be taken most seriously, is ________

Fill in the blank(s) with correct word

Biology & Microbiology