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ankoles [38]
4 years ago
8

Why dead specimens must be used with tranmission electron microscopes?

Biology
1 answer:
mamaluj [8]4 years ago
8 0

The TEM  is a form of electron microscope in which an image is derived from electrons that have passed through the specimen, in particular one in which the whole image is formed at once rather than by scanning. The specimen is placed in a vacuum.

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Which term refers to the accumulation of blood in the limbs that occurs when venous pressure is not high enough to overcome the
vitfil [10]

From what we know, the term used to describe the accumulation of blood in the limbs that occurs when venous pressure is not high enough to overcome the weight of the blood and drive it upward is venous pooling.

<h3>What is venous pooling?</h3>

This is, as described in the question, the accumulation of blood in the limbs. This is often caused by the inability of the veins to keep blood moving towards the heart and is often an indicator of underlying pathology.

Therefore, we can confirm that the accumulation of blood in the limbs occurs when the veins are unable to maintain the blood flowing in the proper direction, and this is referred to as venous pooling.

To learn more about veins visit:

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3 years ago
What elements are present/produced in a black hole?
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Carbon. Nitrogen, and Oxygen.

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ziro4ka [17]

Answer: TRUE

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Every year a rice farmer collects his crops and burns the soil when he is done once the soil is enriched with debris he replants
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