Which evidence best support the big bang theory?

a. rate of rotation of the sun
b. existence of cosmic background radiation
c. uniform radioactive decay of uranium-28
d. separation of earth’s interior into different layers

In guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?