The phenomenon of color constancy best demonstrates that a an object's perceived color is influenced by its surrounding objects. b the retina has three types of color receptors. c the brain processes information about color and shape simultaneously. d quivering eye movements to maintain the perception of color. e color vision depends on pairs of opposing retinal processes.

In cattle a single gene with two alleles determines fur color the fur can be red white or roan roan fur has both red and white hair which of the following statements is true a the allele for roan fur color is dominant over red and white fur color b the allele for red fur color is dominant over white and roan fur color c the roan and white alleles are expressed independently of the other d the red and white alleles are expressed independently of each other