One way bacteria are important to the earth and its ecosystems is that a. bacteria use oxygen. b. bacteria produce acetone. c. bacteria decompose dead organisms. d. bacteria concentrate valuable minerals.

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?