When Biologists Wish to Study the Internal Ultrastructure of Cells,they

question 11

Multiple Choice

When biologists wish to study the internal ultrastructure of cells,they can achieve the finest resolution by using a

• A)phase-contrast light microscope.
• B)scanning electron microscope.
• C)transmission electronic microscope.
• D)confocal fluorescence microscope.

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Definitions:

Floating Calipers

A disc brake caliper that “floats,” or moves back and forth, on bolts in its mounting hardware when the brakes are applied.

Fixed Calipers

Brake calipers that are mounted in a stationary position with pistons arranged on opposing sides of the rotor, applying brake pressure evenly.

Drum Brake Micrometer

A tool used to measure brake drum diameter and to check for out-of-round.

Out-of-round

A condition where a component, such as a rotor or drum, is not perfectly circular, leading to uneven wear or vibration.