verez6In0afaniell verez6In0afaniell

04-04-2016
Biology

contestada

_______ aid in the immune system to fight infections.
A. Red blood cells
B. Platelets
C. Arteries
D. White blood cells

Respuesta :

KatieGro18 KatieGro18

04-04-2016

White blood cells (D) aid in the immune system to fight infections.

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