The image below shows how wolves and dogs compare to some other animals in the levels of classification. Based on this chart, which pair of organisms are most closely related?

Insect and rabbit
Cat and rabbit
Insect and fish
Cat and wolf

This would be cat and wolf. they stay together the longest.

Explanation:

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.