How are the areas of study – evolution and classification – interlinked?

Explanation

Classification involves grouping of organism into a formal system based on similarities in internal and extermanl structure or evolutionary history. Two species are more closely related if they have more characteristics in common. And if two species are more closely related. then it means they a more recent ancestor. For example, in a family, a brother and sister are closely related and they a recent common ancestor i.e., their parents. A brother and his cousin are also related but less than sister asn her brother. This is because the brother and his cousin have a common ancestor i.e., their grandparation. With subsequent generations, the variations make organisms more different than their ancetprs. This discussion clearly proves that we classify organisms according to their resemblance which is similar to creating an evolutionary tree.