Earliest eon of the earth's history A. Cenozoic Era
B. Precambrian
C. Trilobite
D. Mesozoic Era

 the Mesozoic era came before the others however the accurate earliest eon is the Hadeon to be exact, but from the options you provided, answer it D.

Explanation:

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 : )

a chair, a bed, and a toothbrush

explanation: