The cladistic approach to primate classification is Group of answer choices based on levels of anatomical complexity, without consideration of ancestor-descendent relationships. based on direct observation of phenotypes only. based on the use of anatomical and genetic evidence to establish ancestral relationships. also called the gradistic method of classification.

Answer :

based on the use of anatomical and genetic evidence to establish ancestral relationships

Explanation :

We know that,

The cladistic approach to primate :

The cladistic approach to primate is defined as phenotypically and anatomical characteristics, genetic and common characteristics that established ancestral relationships.

It is not purely based on phenotypes only, it required genetic and anatomic behaviour and evidences.

Hence, The correct answer is option (III)