Respuesta :
The complete question is :
What activity does a macrophage cell undertake to contribute to the body's defense against injury and infection?
secretion of chemicals that trigger inflammation
phagocytosis of foreign materials
synthesis of protein fibers used to rebuild damaged tissue
differentiation to form red blood cells
Answer: Option B
Explanation:
The macrophages have the ability to kill the foreign materials that enters the body by any means.
These foreign materials acts as antigens to the body which can cause disease in the human body.
So, the macrophages perform the process of phagocytosis which can kill the bacteria and other pathogens harmful for the body.
These cells engulf the foreign material and the process is known as phagocytosis.
Answer:
Phagocytosis of foreign materials.
Explanation:
The immune cells of the body helps to fight against infections and kill the pathogens. The different immune cells are white blood cells including eosinophils, lymphocyte and macrophages.
Macrophages are the immune cells that has the ability to eat the cells and phagocytose the pathogens. The macrophages plays an important role in the immune system as they reach at the site of the infections and injury and phagocytose the foreign materials.
Thus, the correct answer is option (2).
