Our cells are continually moving things in and out. When this happens without the expenditure of cellular energy, with the concentration gradient, we call this passive transport. If the movement of molecules or ions requires a protein channel of some sort, it is called
facilitated transport, still requiring no energy.

Glucose o2 h20 ATP

Pls help

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 : )