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Grace [21]
3 years ago
5

Describe both innate and acquired immune systems and the importance of vaccines.

Biology
1 answer:
lbvjy [14]3 years ago
3 0

Answer:

Innate immunity is a non-specific immune system which provides defence against any pathogenic microorganism in early stages. It includes physical barrier such as skin, chemical barriers such as saliva, tears, et cetera, phagocytic cells such as macrophages, et cetera.

Acquired immune system is the one which develops after exposure to pathogen or antigen. It is highly specific in nature. It includes B-lymphocytes and T-lymphocytes. It includes the production of antibodies.

Vaccines are used to develop acquired immunity in people. The process is termed as vaccination or immunisation. Heat-killed or weakened pathogen or antigen is inserted into a person after which a person develops antibodies and memory cells against that pathogen or disease. So, the immune system acts more vigorously against that pathogen in secondary infection.

Thus, a person becomes immunised.

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Answer:

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3 years ago
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Cell stained light for the metaphase test and dark for the SDH, then we can classify the cell as an oxidative cell.

<h3>What is metaphase?</h3>

Metaphase, the second stage of mitosis, sees the chromosomes travel onto the spindle's equatorial plane.

<h3>What is the SDH test?</h3>
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brainly.com/question/11574154

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What does a moving charge experience when it is near a magnetic field?
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