Assertion: human body's cell | /r/CapableOf | activate adaptive immune system
Facets:
Source sentences:
text: Macrophages are versatile cells that reside within tissues and produce a wide array of chemicals including enzymes, complement proteins, and cytokines, while they can also act as scavengers that rid the body of worn-out cells and other debris, and as antigen-presenting cells that activate the adaptive immune system.