T-even phages ________.

A. have helical capsids
B. include the poxviruses
C. enter host cells by engulfment
D. infect Escherichia coli cells


Answer: D

Biology & Microbiology

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The evolutionary innovation that first appeared in arthropods and is characteristic of the most successful of all animal groups is that of  

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The emission of heat from any object is called

a. radiation. b. conduction. c. convection. d. denaturing. e. evaporation.

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What component is located on the exterior surface of a prokaryote?

A. Flagellum B. Cytoplasm C. Plasma membrane D. DNA E. Nucleoid

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Sulfur dioxide is added to "must" in the production of wine to

A) improve the flavor. B) allow more control over the fermentation process. C) provide a necessary nutrient for the fermentation process. D) prevent tannins from leaching out of wood into the fermenting wine. E) both enhance flavor and promote fermentation.

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