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Lesechka [4]
2 years ago
13

Why is negative staining useful in transmission electron microscopy-based visualization of viruses?

Medicine
1 answer:
frosja888 [35]2 years ago
8 0

Answer:

well you see, negative staining of viral suspensions provides detailed information of virus particles' structure. It is a technique that can be quickly performed and is able to accommodate the highest magnifications of virus particles.

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Mr. Fitzgerald is selling his home to permanently move into a retirement facility near his daughter in a neighboring state. He h
Paha777 [63]

Answer:

well since he is moving near his daughter and I'm assuming she's young, he could ask her to get those drugs and give them to her.

5 0
3 years ago
Antibiotics are routinely introduced into the food of cattle, chickens and other livestock, which causes the animals to grow fas
Rudik [331]

Answer:

Bacteria are highly adaptable microorganisms who have the capability of developing defense mechanisms against that which may harm them. Not least important of all, is the easiness with which some bacteria, especially pathogenic bacteria like Salmonella, or Klebsiella, develop mechanisms of resistance to antiseptics and, most importantly, antibiotics.

Antibiotics are a chemical substance that was created, and has been developed, in order to be able to combat pathogenic microorganisms, specifically bacteria. However, because today these substances are being used indiscriminately, we are now seeing a very worrying pattern of antibiotic-resistance patterns in microorganisms that used to be sensible to them. The result, we are facing strains of pathogenic bacteria, like Klebsiella pneumonia and E. Coli, that have become resistan to all types of antibiotics, from first generation, to fourth generation. And this has meant that when people acquire infection by these pathogens, the likelihood of death by them has increased because there are no agents capable of combating them.

Exposure to antibiotics has been the sole reason why these resistant strains of bacteria have emerged, especially when these antibiotics are not necessary. And feeding these substances to animals, to ensure their development and weight gain, has not made the situation any better. Now, we are instead adding also bacteria to the list that did not use to be resistant, but that are becoming so as they become adjusted to the constant exposure to antibiotics. Again, the result has been: more people infected with bacterial strains that cannot be combated with any of the existing antibiotic agents.

5 0
3 years ago
Stains formed outside the tooth structure and are removable by a prophy.
ss7ja [257]

Answer:

The correct term is - extrinsic stain.

Explanation:

Extrinsic stains are normally present on the surface of a tooth and occur due to taking pigmented beverages such as coffee, tea, carbonated drinks, caramel coloring, and foods. Smoking cigarettes is also one of the reasons that can cause an extrinsic stain.

This can be removed by dentists or professionals like hygienists. The stain particles act on the outer surface of the teeth and pigmented them which cause stain yellowish or brownish in individuals.

Thus, the correct answer is - extrinsic stain.

8 0
3 years ago
Discuss Clonal Selection Theory in human physiology and its application in Rubeola Infection in a 6-year-old child.
Illusion [34]

Answer:

Application or Implementation including its Clonal personality psychology for Rubeola infectious disease in something like a 6-year-old child is given below.

Explanation:

<u>Clonal Selection Theory:</u>

This hypothesis notes that lymphocytes have virulence genes preceding activation and also that spontaneous mutations throughout clonal expansion induce the formation of lymphocytes containing strong affinity antigen affiliations.

<u>Its applications are given below:</u>

  • Throughout the situation of Rubeola infectious disease in such a 6-year-old boy, as shown by this hypothesis, B-cells that distinguish after such an innate immune system forming phase selection because then antioxidants formed by younger memory B cells provide significantly higher commonalities to certain antigens.
  • As a result, secondary physiological systems from memory blocks have become so successful that persistent Rubeola attacks with much the same virus are prevented unless setting up.
  • After the primary outbreak, genetic mutations throughout clonal selection may generate recollection B cells which could attach to implementation more effectively than those of the initial B cells.

8 0
3 years ago
a 5-year-old child is receiving dactinomycin and doxorubicin therapy after nephrectomy for wilms tumor. what intervention does t
Aleks04 [339]

In a 5-year-old child is receiving dactinomycin and doxorubicin therapy after nephrectomy for wilms tumor. The  intervention that the nurse include when planning care is: Demonstrating Meticulous Oral Hygiene.

<h3>What is oral hygiene?</h3>

Oral hygiene  can be defined as the way of taking care of your mouth by brushing your teeth on a daily  basis so as to prevent bacteria or disease.

Carrying our oral hygiene is important when taking drugs that can tend to have negative effect on  a  person oral mucosa and on of the side effect of doxorubicin is thrombocytopenia.

Therefore In a 5-year-old child is receiving dactinomycin and doxorubicin therapy after nephrectomy for wilms tumor. The  intervention that the nurse include when planning care is: Demonstrating Meticulous Oral Hygiene.


Learn more about Oral hygiene here:

brainly.com/question/7041792

brainly.com/question/1922740

#SPJ4

3 0
1 year ago
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