Question

An important evidence in favor of organic evolution is the occurrence of

• A. Homologous and vestigial organs
• B. Analogous and vestigial organs
• C. Homologous organs only
• D. Homologous and analogous organs

Answer 1

The correct option is A Homologous and vestigial organs

An important evidence in favor of organic evolution is the occurrence of homologous and vestigial organs. Homologous organs represent divergent evolution. These are the organs. These are the organs belonging to different organisms of different species may be for dissimilar function but they all have the same basic structure. On the other hand, vestigial organs show how a from its ancestors through the ages according to the use and disuse of organs. These are the organs which are functional in humans (or any other organism) but during the course of evolution their utility gradually decline and now they are present as non-functional or vestigial organs. The term analogous structures pertain to the various structures in different species having the same function but have evolved separately, thus do not share a common ancestor and thus they do not favor organic evolution.