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Ghella [55]
3 years ago
10

The question is in the screenshot

Biology
1 answer:
Anika [276]3 years ago
4 0
I think the answer would be C.
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Photosynthesis is the term for the process by which plants produce food and energy in the presence of some inorganic substances and solar energy.

<h3>What is the reason behind the above answer ?</h3>

The glass of water won't react when it's placed in the sun's rays.

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The true photosynthetic reaction also uses carbon dioxide and water as reactants, but chlorophyll is a plant pigment that is present during the reaction.

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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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