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.
They are not made of cells and they cannot reproduce on their own.
I believe wilderness, but you can go online and research it just to make sure !
Answer: I believe that the answer is D.
Explanation:
Because it doesnt give oxygen, cant do any human things, and it doesnt do anything a plant does, it just gives off fumes. example:plants can breed and breathe, it can grow. fire doesnt breathe it cant breed but it can grow.
