A naked virus only has a/an ________.

A. nucleocapsid
B. capsomere
C. antigenic surface
D. envelope


Answer: A

Biology & Microbiology

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Which of the following flagellates has a single nucleus in the cyst and the typical curved, cytostomal fibril, which is called a shepherd's crook?

a. G. duodenalis b. C. mesnili c. D. fragilis d. E. hominis

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In a mycorrhizal relationship, the fungal component can assist in providing phosphorus and water to the plant. The plant in turn provides the fungus with ________.

A. metal cofactors B. carbon dioxide C. nitrogen D. organic carbon

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Variation in which of the following is not a major mechanism for regulation of blood pressure?

1.cardiac output 2.constriction of blood vessels 3.pacemaker signal strength 4.total blood volume

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Urinalysis can be used to identify all of the

following EXCEPT a. a metabolic problem. b. prostate cancer. c. kidney disease. d. diabetes mellitus. e. cardiac damage.

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