Chapter 18, Problem 3STP

Summary Introduction

Introduction:

The modern system of classification relies on the evolutionary relationship and the physical appearance of the organism. The taxonomic classification is based how similar two species are, in term of their habits, appearance and phylogeny.

Answer to Problem 3STP

Option (D).

Explanation of Solution

Explanation for correct answer:

Option (D) different age of evolutionary origin. The difference in the age of evolutionary origin suggest that these two genera are evolved separately and the similarity in the characteristics could be a analogous trait. Hence, the correct answer is option (D).

Explanation for incorrect answer:

Option (A) different prey. Species of one genera may rely on different food sources on different habitat. Hence, this is an incorrect answer.

Option (B) different habitat. The difference in the habitat an be observed between individuals of same genera too. Hence, this is an incorrect answer.

Option (C) different structure of skull.Red wolf and Pampas fox have similar structure of skull. So, this is an incorrect answer.