67. Presence of a vestigial appendix in man suggests that our forebears were a.herbivores b.carnivores c.omnivores d.fruit eaters
The human appendix had previously been proposed to be a vestigial structure, a structure that has lost all or most of its original function. The vermiform appendix has been proposed to be the shrunken remainder of the cecum that was found in a remote ancestor of humans. A possible scenario for the progression from a fully functional cecum to the current human appendix was put forth by Charles Darwin. He suggested that the appendix was used for digesting leaves as primates. It may be a vestigial organ of ancient humans that has degraded to nearly nothing over the course of evolution. The very long cecum of some herbivorous animals, such as found in the horse or the koala, appears to support this theory.
