Which of the following statements is false regarding guard cells? a. they are scattered throughout the epidermis of the leaf. b. they contain the chloroplasts which carry out photosynthesis. c. in response to light, a stomata forms between a pair of guard cells. d. they are colorless.

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?