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Bezzdna [24]
3 years ago
9

Neutrophils can sometimes kill human cells along with pathogens when they release the toxic contents of their granules into the

surrounding tissue. Likewise, natural killer cells target human cells for destruction. Explain why it is advantageous for the immune system to have cells that can kill human cells as well as pathogens.
Biology
1 answer:
NNADVOKAT [17]3 years ago
7 0

Answer:

Because Neutrophils has many other functions like

  • Neutrophils are the most abundant granulocytes that makeup about 40% of white blood cells and 60% of the immune cells in the blood.
  • Neutrophils are the first responders to infection, and they phagocytose bacteria into phagosomes before hydrolyzing and destroying them.
  • These cells also secrete a range of proteins that have antimicrobial effects as well as tissue remodeling potential.
  • Neutrophils have a short lifespan and thus destroy themselves during the degradation of foreign invaders. New neutrophils are then produced continuously in the bone marrow.
  • The neutrophils of another subpopulation, cager neutrophils, perform a transport function of delivering foreign particles to the target site for the action of killer neutrophils.

Like wise Natural killer (NK) cells are effector lymphocytes of the innate immune system that control several types of tumors and microbial infections by limiting their spread and subsequent tissue damage.

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Which of the following is the term for an abnormally low white blood cell count?
Nikolay [14]

Answer:

The correct answer is- Leukopenia

Explanation:

White blood cells are present in our blood which protect our body from foreign antigens like bacteria, viruses, etc. When these white blood cells decrease abnormally in number then this condition is called leukopenia.

White blood cells contain different cell which protect our body from different type of infections. So there are different types of leukopenia according to the particular white blood cell whose number became low.

For example when neutrophils number in the body decrease it is called neutropenia. So the correct answer is leukopenia.

4 0
3 years ago
Which of the following may display two different grain sizes?
andreyandreev [35.5K]
<h2>Answer:</h2>

b. sedimentary rock

c. igneous rock

Sedimentary and igneous rocks may display two different pore size. According to a rough estimate the grain size of Sedimentary rocks is 5mm and grain size of igneous rock is 2mm.

7 0
3 years ago
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Serjik [45]

The answer is c

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options a, b, d and e don't match the calculations at all.

5 0
3 years ago
1. When the San Joaquin Valley sunk by nearly 28 feet, how
Yakvenalex [24]

Answer:

The correct answer is option a, that is, transported water from distant mountains to flood the region.

Explanation:

A central valley of California known as San Joaquin Valley experiences drought because of the groundwater depletion that took place in the 1920s resulting in the sinking of the valley by almost 28 feet. As this place largely relies upon the huge volumes of water, the valley now has turned into an arid and semi-arid region. This made the state water project to divert the surface water into the valley so that the issue can get resolved.

7 0
3 years ago
When would you use a dry mount to view a specimen under a microscope? When would you use a wet mount?
Ronch [10]

Answer:

dry first wet last. i honestly dont know but good luck

5 0
3 years ago
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