Bacteria and viruses : pathogens :: a.
cytotoxic T cells and macrophages : pathogens

b.
cytotoxic T cells and B cells : white blood cells

c.
B cells and T cells : mucous membrane cells

d.
helper T cells and cytotoxic T cells : skin cells

i'm gonna put a couple so you can chose from

explanation:

if you know the fur color of the offspring mice, you can use the ratios to identify the genotypes of the parents.

if either parent mouse passes a dominant allele, the offspring will have black fur.

if the parental mice has two different fur color (i.e white and black) , the color of the offspring's fur would be either black, white, or the combination of both (grey)

hope this : )

c. would be the answer : )

explanation:

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explanation:

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