Regions of a specimen with higher electron density scatter ________ electrons and, therefore, appear ________ in the image projected onto the screen of a transmission electron microscope.

A. fewer; lighter
B. more; lighter
C. fewer; darker
D. more; darker


Answer: D

Biology & Microbiology

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Longer vocal cords generate higher-pitched tones than longer ones

Indicate whether the statement is true or false

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nitrogen fixation back into nitrogen gas process

What will be an ideal response?

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A growth medium that favors the growth of some microorganisms but inhibits the growth of other microorganisms is a ________ medium.

A. neither selective nor differential B. selective and differential C. selective D. differential

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