Respuesta :

Answer:

Neutrophils are the white blood cells that arrive first at the site of injury. They release chemical signals that attract other immune cells in an effort to help protect the body. Monocytes are special white blood cells that mature into cells called macrophages.

Explanation:

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Neutrophils. They kill and digest bacteria and fungi. They are the most numerous type of white blood cell and your first line of defense when infection strikes.