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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.


Sagot :

Answer:

a.

Explanation:

pathogens may enter the body and cause illness.

Immune system is the one that helps to keep away the invading organisms in the body causing disease. A person who has a weakened immune system will not be able to overcome against infection because pathogens may enter the body and cause illness, i.e., option A.

What are pathogens?

Pathogens are the organisms or specifically disease-causing organisms that enter the body and alter the functioning of the immune system.

These pathogens can be bacteria, viruses, etc. that can enter through food, water, air, etc.

A weakened immune system can not be able to fight with these invading pathogens and hence leads to diseases.

Thus, the correct answer is A.

For more details regarding pathogens, visit:

https://brainly.com/question/18918957

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