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A person who has a weakened immune system may not be able to fight against infection because?

Apathogens may enter the body and cause illness.
Bphagocytes many enter the body and cause illness.
Cnormal cells crowd out unhealthy cells.
Dof an increase in the production of antibodies.

Verified Answer :

kaivalyashenoy

pathogens may enter the body and cause illness because the body doesn't have an efficient immune system to fight against the pathogens

Answer;

-Pathogens may enter the body and cause illness.

Explanation;

-The immune system works to keep pathogens such as viruses and bacteria, out of the body and destroy any that get in. The immune system is made up of a complex network of cells and organs that protect the body from infection. Lymph nodes are part of the immune system. They release lymphocytes, a certain type of white blood cell that fights infection.

-Some disorders make the immune system unable to fight off infections. In other disorders, the immune system actually attacks the body's cells or organs the same way it would attack an infection. When this happens the body's immune system is unable to prevent entry of pathogens and thus pathogens may enter the body and cause illness or diseases.

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