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Zarrin [17]
3 years ago
10

In patients infected with nonresistant strains of the tuberculosis bacterium, antibiotics can relieve symptoms in a few weeks. H

owever, it takes much longer to halt the infection, and patients may discontinue treatment while bacteria are still present. How might this result in the evolution of drug-resistant pathogens?
Biology
1 answer:
Natali [406]3 years ago
8 0

Answer:

Infectious dose refers to the minimum number or amount of pathogens required in order to produce a disease or its symptoms. In the given case, the bacterium is non-resistant and is treated with antibiotics.

The antibiotics help in neutralizing the infectious agents; however, full course should be done to eliminate the infectious agent completely out of the body.

If the course is left in between then, there are very high chances that some bacteria may survive. They might not produce disease or symptoms as they would be less than infectious dose.

However, with time, the survived bacteria gain more and more mutations during replication which can develop antibiotic resistance capability in them.

In addition, it is also possible that the survived bacteria can get R-plasmid (which has antibiotic resistant gene) from body's normal flora or from any other infectious agent present in the body by the process of transformation or conjugation.

The R-plasmid enables them to survive even in the presence of antibiotics due to which the treatment of the disease might become difficult.

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3 years ago
In the cranial nerve model, which best describes the location of the optic chasma:________
eimsori [14]

Answer:

  • <u>Cranial Nerves:</u>

The cranial nerves are the set of 12 pairs of nerves which are originated from the brain. As they are responsible for some of the essential functions , such as vision, smell, and balance of the human body structure.

<u>The 12 pairs of the cranial nerves are as as under:</u>

  1. The olfactory nerve
  2. The optic nerve
  3. The oculomotor nerve
  4. The trochlear nerve
  5. The trigeminal nerve
  6. The abducens nerve
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  8. The vestibulocochlear nerve
  9. The glossopharyngeal nerve
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  11. The spinal accessory
  12. The hypoglossal nerve,
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Explanation:

  • <u>Optic chasma:</u>

The optic chasma originates as one of the cranial nerves, as it serves for the function of vision sense in human body. The nerves are responsible for carrying the set of information and data from the retina of the eye to the brain. As the communication between the two regions or part of the body, as they hold the capacity to carry the charges or information from the retina of the eye towards the brain.

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3 years ago
Which of the following give evidence for the big bang theory? Check all that apply.
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Answer:

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Explanation:

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Answer:

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