You Would Like to Use an Electron Microscope to Study

question 52

Multiple Choice

You would like to use an electron microscope to study features of a virus that are about 0.25 nm in size. What accelerating voltage is needed for the electrons in this microscope?

• A) 96 V
• B) 48 V
• C) 24 V
• D) 5 V

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Definitions:

Amphibians

A class of cold-blooded vertebrates that includes frogs, toads, salamanders, and newts, primarily living in moist environments.

Birds

Warm-blooded vertebrates characterized by feathers, beak with no teeth, laying hard-shelled eggs, and a high metabolic rate; members of the class Aves.

Interbreed

To mate or cross different breeds, varieties, or species of organisms, often resulting in hybrid offspring.

Population

A group of individuals of the same species living and interacting within a particular area.