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marysya [2.9K]
3 years ago
10

What is the reason that a modern electron microscope (TEM) can resolve biological images to the subnanometer level, as opposed t

o tens of nanometers achievable for the best super-resolution light microscope?
a.the focal length of the electron microscope is significantly longerb.contrast is enhanced by staining with atoms of heavy metalc.electron beams have much shorter wavelengths than visible lightd.the electron microscope has a much greater ratio of image size to real size
Biology
1 answer:
Alex Ar [27]3 years ago
8 0

Answer:

C. Electron beams have much shorter wavelengths than visible light

Explanation:

A beam of electrons is used to illuminate and create magnified images of specimens in an electron microscope. The resolution of a microscope increases with a decrease in the wavelength of the light it uses for illumination. The wavelength of electrons used in the electron microscope is about 100,000 times shorter than that of visible light. Therefore electron microscopes have a resolution thousand times better than the light microscope.

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how many units of energy would there need to be to end up with 1000 units in the second? in the third? in the fourth?
mojhsa [17]

Answer:

10000 units in the second

100000 units in the third

1000000 units in the fourth

Explanation:

According to the pyramid of energy, which describes how energy flows from one trophic level to another, only about 10% of the available energy is transferred to the organism in the next trophic level as a lot of energy (about 90%) is lost as heat.

In this question, in order to have 1000inits of energy in

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10x = 100000

x = 10000units of energy

- for third trophic level,

100 × 1000

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- for fourth trophic level;

1000 × 1000

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borishaifa [10]
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monitta

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Explanation:

Because, the three other answers are an internal stimuli

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vazorg [7]

Answer:

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Explanation:

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