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Over [174]
3 years ago
6

Description: What are stem cells? Where do stem cells come from? Why are they important?

History
2 answers:
iren [92.7K]3 years ago
6 0
Stem cells are a class of undifferentiated cells that are able to differentiate into special cell types.
They are important because they represent an area in medicine, because they have the potential to regenerate and repair damaged tissue.
Not all stem cells come from embryos but also bone marrow, your teeth and other places.
Jlenok [28]3 years ago
6 0

Answer:

<em>What are stem cells?  </em>

They are cells found in all organisms that have more than one cell. Under appropriate conditions, stem cells divide into new cells. It can be said that they are the raw material from which all other cells are generated. These new cells become new stem cells (self-renewal) or specialized cells with a more specific function (differentiation).  

<em>Where do stem cells come from? </em>

Research has shown that there are several sources of stem cells:

  • Embryonic stem cells: come from embryos that are three to five days old.
  • Adult stem cells: are found in small amounts in most adult tissues, such as bone marrow or fat.
  • Adult cells modified to have the properties of embryonic stem cells by genetic reproduction.
  • Perinatal stem cells that are found in amniotic fluid, as well as in umbilical cord blood.

<em>Why are they important?</em>  

Researchers and doctors hope that stem cell studies can help increase understanding of how diseases occur and develop. The possibility that has arisen to generate healthy cells to replace diseased cells (regenerative medicine) is very important. Stem cells can be oriented to become specific cells that can be used to regenerate and repair diseased or damaged tissues in people.

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Answer:

arraign. verb. to order someone to go to a court of law to be formally charged with a crime.

i hope this helps :)

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Who makes the rule in anarchy? What is an example? And how do the people react?
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Absolute chaos is what we would define as anarchy; it is essentially the reverse of order. What makes an anarchy worse would be the shocking lack of a robust legal system because there can be no laws in a society built on complete chaos, but if you're talking about a government based on anarchy, it would be a system where there is no state identity and no real central government. Somalia, to some extent, serves as the most prevalent illustration of why a government founded on anarchy is a horrible concept. Although there is a central government, its power over its territory varies. Certain sections are under the influence of the militant group Al Shabab, and the Somaliland region is attempting to declare its independence from the federal government. The country is rife with a milder but no less deadly type of anarchy due to the absence of a strong central leadership.

Anarchic societies where every individual is equally empowered are unsustainable. The individuals quickly cluster into tribal units, and without some overriding authority, it’s impossible to stop that from happening. The tribal units (or gangs, if you prefer) are run by warlords who keep each other in check until one of them gains a decisive advantage over the others, and then you’ve got the beginnings of a state.

This drama has played out countless times in the course of human history, and is still playing out in the criminal underworld to the extent that it can. That extent is limited by the fact that now there is an overriding authority with enforceable power, the legitimate state.

Thank you,

Eddie

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Hey Friend! :)


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