whatisgoingonplease7 whatisgoingonplease7

25-03-2021
Biology

contestada

Which parts of the body help to make up the first line of defense for your immune system ?

a. white and red blood cells

b. Skin,breathing passages, mouth and stomach

c.T & B cells

d. Memory cells and antibodies

Respuesta :

sept7577 sept7577

25-03-2021

Answer:

b

Explanation:

its the first thing that bacteria or any pathogens come into contact

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