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Rama09 [41]
3 years ago
5

What are the functions of T memory cells

Biology
2 answers:
viktelen [127]3 years ago
7 0
They provide the immune system with "memory" against previously encountered pathogens.

T memory cells are necessary for protective immunity against invading pathogens
jek_recluse [69]3 years ago
7 0

Answer:

T cells provide an immune response against the antigen by attacking infected cells and provide immediate response against future infection, by producing antibodies.

Explanation:

T cells or the T lymphocytes are one of the major components of the acquired immune system. They are important to have an immune response against pathogens.

T cells act against intracellular antigens such as protozoa, viruses, and bacteria (intracellular), and providing help for the antibody response for extracellular pathogens. They are of four main types - CD4+ helper, CD8+ cytotoxic cells, memory T cells, and NK cells.

These cells release cytokines to directly attack infected cells and stimulate the production of more T cells. Some of these T cells will become memory T cells in preparation for secondary infections, and others become cytotoxic T cells to attack infected cells.

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Cod fry often settle under the bell of some jellyfish species, whose tentacles are poisonous. Name the form of relationship illu
bixtya [17]

Answer:

Explanation:

  • 해파리 (cnidarians) have a worldwide distribution. Despite most being harmless, some species may cause local and also systemic reactions. 처치 of 해파리 envenomation is directed at: alleviating the local effects of venom, preventing further nematocyst discharges and controlling systemic reactions, including shock. In severe cases, the most important step is stabilizing and maintaining vital functions. With some 차이점 between species, there seems to be evidence and consensus on oral/topical analgesics, hot water and ice packs as effective painkillers and on 30 s application of domestic vinegar (4%–6% acetic acid) to prevent further discharge of unfired nematocysts remaining on the skin. Conversely, alcohol, methylated spirits and fresh water should be 조심스럽게 avoided, since they could massively discharge nematocysts; pressure immobilization bandaging should also be avoided, as laboratory studies show that it stimulates additional venom discharge from nematocysts. Most 처치 approaches are presently founded on 상대적으로 weak evidence; therefore, further research (especially randomized clinical trials) is strongly recommended. Dissemination of appropriate 처치 modalities should be deployed to better inform and educate those at risk. Adequate signage should be placed at 바닷가 to notify tourists of the jellyfish risk. Swimmers in risky areas should wear 보호 장비.
3 0
2 years ago
Which of the following is a molecule?<br> A. Argon<br> B. Water<br> C. Nitrogen<br> D. Uranium
san4es73 [151]

Answer:

Argon- a chemical element

Water- polar molecule

Nitrogen- chemical compound

Uranium- chemical element

Hope this helps! :)

Please give brainliest

:)

Explanation:

In conclusion B. water is a molecule

3 0
2 years ago
A science student makes the following statement. A raccoon may live longer when it eats only vegetables. What is the student doi
Elena-2011 [213]
The student is likely engaging or forming a hypothesis in which a hypothesis is a scientific method of having to formulate an intelligent or educated guess that may be an answer as to how a problem has occurred in which the student thinks that the racoon may live longer if it only eats vegetables.
3 0
2 years ago
Can someone please help?
Fiesta28 [93]

Answer:

d

Explanation:

i think it d

5 0
3 years ago
Read 2 more answers
Explain incomplete dominance, using snapdragon<br> flowers as an example.
oee [108]

Answer:

Dominant allele does not completely conceal recessive allele.

Snapdragon with genotype Rr (R being red and r being white), would have a phenotype of pink flowers.

Explanation:

Incomplete dominance is where a dominant allele is not able to completely conceal a recessive allele, usually leading to a phenotype which appears to be a combination of the two.

For example, in snapdragons:

The allele for red flowers (R) is dominant over the allele for white flowers (r). Let's say a snapdragon flower had the genotype Rr, one allele for red flowers and one for white. In the case of 'normal' dominance the dominant red flower allele (R) would mask the effects of the recessive white flower allele (r), resulting in the phenotype (outward observable characteristics) of having red flowers.

However here in the case of incomplete dominance, the dominant allele would not be able to fully cover up the effects of the white flower allele, meaning that both colors (red and white) are expressed in the phenotype, resulting in pink flowers.

Hope this helped!

5 0
2 years ago
Read 2 more answers
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