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2 years ago

What are the disadvantages of transmission electron microscope?

Biology

1 answer:

Arada [10]2 years ago

6 0

A Transmission Electron Microscope is an impressive instrument with a number of advantages such as:

TEMs offer the most powerful magnification, potentially over one million times or more

TEMs have a wide-range of applications and can be utilized in a variety of different scientific, educational and industrial fields

TEMs provide information on element and compound structure

Images are high-quality and detailed

TEMs are able to yield information of surface features, shape, size and structure

They are easy to operate with proper training

Disafvantages:

Some cons of electron microscopes include:

TEMs are large and very expensive

Laborious sample preparation

Potential artifacts from sample preparation

Operation and analysis requires special training

Samples are limited to those that are electron transparent, able to tolerate the vacuum chamber and small enough to fit in the chamber

TEMs require special housing and maintenance

Images are black and white

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Why does the moon appear to change shape during a month?

zubka84 [21]

The moon does not create its own light, but the sun reflects light of the moon so depending on where the sun sits (which it is always moving) causes the different phases or appearances to the moons shape

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2 years ago

Read 2 more answers

An atom of element A has 27 protons. What would the element's atomic number be?

erastova [34]

Answer:

Explanation:

The number of protons in atom is the atomic number. For a neutral atom that has not lost or gained any electron, it is the same as the number of electrons.

The atomic number is used in perfect ordering of the periodic table and it is the basis of the periodic law.

Protons are positively charged subatomic particles that reside in the in the nucleus of an atom with the neutrons.

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3 years ago

A species with narrow niches that can survive in a small range of environmental conditions are

Ugo [173]

Answer:

D. Specialist Species

<h2>What is the advantage for species to be specialists, and how can they survive in the presence of opportunistic/generalist species?</h2>

In the setting of specialized habitats or unique situations, specialized species exist. When those conditions and surroundings change, they must adapt or go extinct, thus they must survive while they still exist.

When compared to generalists, they have the benefit of efficiency, which increases the likelihood of survival and, hence, reproduction within certain settings or situations. The generalists, on the other hand, have the benefit of being able to survive in a larger variety of circumstances and have a higher probability of doing so.

Cactuses, which are plants adapted to dry environments, are an example of specialization. More generalist plant species would typically outcompete cacti in most habitats on Earth, but very few of such species could endure the harsh conditions of a desert.

Extreme environmental conditions, competition for limited resources, and "evolutionary arms races" are some of the pressures that cause specialization. Cheetahs sprint quickly both because their prey moves quickly and because quicker cheetahs will be more effective hunters and more likely to procreate. The advantage of specialization is clear when seen from the standpoint of catching the next meal on a daily basis.

My key argument is that specialization's benefits must always be viewed in the context of the environment that generated the selective pressure that resulted in specialization. Although experts are specialists because they must be, their specializations put them in danger.

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1 year ago

the major physical symptom associated with klinefelter syndrome is ____.

Anna [14]

fertility problems is the right answer :)

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3 years ago

If an ecosystem is no longer able to sustain its biodiversity, what potential impact could that fact have on the carrying capaci

Aneli [31]

What would happen is if there was no ecosystem in biodiversity every organism would become effected in such a impactful way. It would Decrease population in animals and Humans

I really hope this helped :)

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2 years ago