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OLga [1]
2 years ago
13

Once cells have specialized and are performing a specific function they cannot.

Biology
2 answers:
deff fn [24]2 years ago
7 0
Undergo differentiation 
become stem cells 
turn on all of the genes found in the nucleus 

some cells can undergo cell division
madam [21]2 years ago
4 0

Answer:

The correct options would be  

  • Become stem cells
  • Undergo differentiation  
  • Turn on all of the genes found in the nucleus

The cell is said to differentiate when they grow and mature to perform a specialized function.  

It can not re-differentiate into any other cell type. For example, muscle cell cannot differentiate into the blood cell.

In addition, the differentiated cell cannot convert back to the stem cell as stem cell is an undifferentiated cell which is capable of dividing and differentiate into another cell type.

Lastly, in a differentiated cell, only a specific set of genes are expressed. For example, in a sarcomere different set of genes would be expressed as compared to the genes expressed in a neuron.

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During a 6 month period, 239 cases of pneumonia occurred in a town of 300 people. A clinical case was defined a fever >102oF
bagirrra123 [75]

Answer:

<em>a. What is the significance of the rainfall? </em>These bacteria resist desiccation, and its dispersion is favored by winds. A decrease in rainfall means a dryer environment, which the bacteria can resist and makes it easier for the cell to be carried somewhere else by winds.  

<em>b. The etiologic agent of the disease is </em><em>Coxiella burnetii</em>

<em>c. This is an example of</em>  a zoonosis  

Explanation:

Q fiber Pneumonia is a zoonosis world-widely distributed and of global importance, which etiologic agent is <em>Coxiella bunetti</em><em>.</em>

  • Zoonosis: Referred to as the infectious diseases that are naturally transmitted from animals to human beings. Among zoonotic pathogens, there are bacteria, viruses, or parasites. They propagate by direct contact, water, and wind, among others. These diseases represent a global importance problem due to the close ties with animals. Zoonotic diseases increase even more as human being keeps dispersing and invading natural wild environments to raise cattle and farm, among other activities.
  • The etiologic agent is the element that propitiates the origin and evolution of a disease. Many bacteria and viruses might be considered to be one of the most common etiological agents.

Populations in contact with goats, sheep, and cattle, use to have a positive result for antibodies against <em>Coxiella burnetii</em>. This bacteria is transmitted to humans orally and by inhalation. The microorganisms resist extreme conditions and are highly infectious. The inhalation of only one cell can produce an important infection in the host. It resists desiccation and any other environmental degradation. They can persist for several months and be transported by winds to farther places. This makes it even more difficult to determine the epidemiologic origin.

<em>  </em>

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2 years ago
Covalent bonds are chemical bonds between ions.<br> A. True<br> B. False
Simora [160]

i think it would be

A. True.

7 0
3 years ago
Read 2 more answers
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