Which of the following tells you what you need to know about population density a. the number of tracks per year
b. the number of crabs on the beach
c. the number of deaths per year
d. the number of mold per square millimeter

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