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nadya68 [22]
3 years ago
7

How do cells know how to differentiate?

Biology
1 answer:
jonny [76]3 years ago
8 0
Cells know how to differentiate through a process called gene expression. It’s a specific combination of genes that are turned on and off.
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he is right its short term,

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Which type of organism is used in toothpaste, but can also cause malaria?
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Northern elephant seals were hunted to the point that their population size was reduced to as few as 20 in the late 1800s. Since
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Population bottlenecks.  but their genes still carry the marks of this bottleneck: they have much less genetic variation than a population of southern elephant seals that was not so intensely hunted.

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What human activities affect the water, carbon, and the nitrogen cycle what are the consequences
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3 years ago
Explain the difference between fire resistance and flame spread. describe the hazards firefighters should be aware of during the
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Fire resistance is where the amount of time that material has withstood a standard fire exposure whereas flame spread is the speed at which a flame spread along the surface of a specific material and is considered as the difference between fire resistance and flame spread.

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Flame spread is described as the surface burning characteristics enhanced by building materials. It is the most tested property of the fire performance of a material.

Firefighters should be aware of the growth and spread of a fire as they face respiratory hazards in emergency situations which include oxygen deficiency,  temperature elevation, smoke as well as toxic atmospheres. This can also affect both the physical and mental effects of the firefighter and would be worse if proper respirator precautions are not followed.

This indicates that firefighters are regularly exposed to certain concentrations of hazardous materials that include carcinogenic products such as carbon monoxide, benzene, sulphur dioxide, hydrogen cyanide, aldehydes as well as particulates.

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