The modern classification system is based on
A- putting organisms into categories based on where they live.

B- putting organisms into categories based on how they reproduce.

C- putting organisms into categories based on similar characteristics.

D- putting organisms into categories based on the type of food they eat.

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