Which two of the following organisms are most closely related and why? Green frog, Mountain Lion, Domestic Dog, Human
a. Domestic Dog and Human: These two organisms are most closely related as they both belong to the same family (Hominidae) and have a long history of cohabitation and interaction.

b. Green frog and Mountain Lion: These two organisms are not closely related as they belong to different classes (Amphibia and Mammalia, respectively) and have very different evolutionary histories.

c. Mountain Lion and Domestic Dog: These two organisms are more closely related than the others as they both belong to the order Carnivora and have similar dietary habits and physical adaptations for hunting.

d. Green frog and Human: These two organisms are not closely related as they belong to different classes (Amphibia and Mammalia, respectively) and have very different evolutionary histories.