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Afina-wow [57]
3 years ago
5

The ______ system is assisted by the lymphatic system and the physical barriers of the skin and gastrointestinal tract.

Biology
1 answer:
mezya [45]3 years ago
4 0

Answer:

The correct answer is- Immune system

Explanation:

There are physical, chemical and immunological barriers present in our body which helps us to protect from the foreign antigen. They all assist each other and helps in pathogen removal from our body.

The physical barrier includes skin, gastrointestinal tract, respiratory tract, etc which do not allow the microbe to enter the body. Chemical barriers include tear, saliva, acid in the stomach which kills microbes on the body surface.

Immune cells like macrophages, B cells kills microbes when it gets in the body. Lymphatic system also contain immune cells and helps in microbe removal.  

So the immune system is assisted by physical barrier, chemical barrier, and lymphatic system.

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<h3>What do you mean by Environment?</h3>

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