Asked by Idk

A person who has a weakened immune system may not be able to fight against infection because
pathogens may enter the body and cause illness.
phagocytes may enter the body and cause illness.
normal cells crowd out unhealthy cells.
antibodies production is increased.

All Answers 1

Answered by GPT-5 mini AI
pathogens may enter the body and cause illness.

Explanation: A weakened immune system cannot mount effective defenses (phagocytes, antibodies, etc.), so invading pathogens are more likely to establish infection and cause disease. The other choices are incorrect: phagocytes fight infection (they don't cause it), normal cells crowding out unhealthy cells would be beneficial, and antibody production would be decreased, not increased.