Which part of the crossbow holds the arrow in the track until the trigger is squeezed?

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 : )

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."