Why should we even have vestigial organs to begin with, if they do not serve any useful function e.g appendix?

Answer 1

The vermiform appendix is, as the name implies, a wormlike, tubular structure. Although it serves no important digestive function in humans, it contains lymphatic tissue and may play a minor role in the immunologic defense mechanisms of the body. The appendix is directly attached to the cecum. The appendix contains a blind, tubelike interior lumen that communicates with the lumen of the large intestine 3 cm (1 inch) below the opening of the ileocecal valve into the cecum.

Answer 2

The tongue’s surface sometimes becomes “furred” or coated. Actually the formation of a coating on the tongue is a natural and continuous process. However, this coating is usually removed by saliva flow, chewing of food, talking and swallowing. The coating is generally composed of small food particles, bacteria and tissue cells that are sloughed off the surface of the tongue in a way similar to that in which your skin sheds dead cells. Any condition that interferes with the normal cleaning of the tongue may produce an abnormally coated tongue. Among the factors that can contribute to this are soft diet, mouth breathing for some, lack of attention to mouth hygiene, smoking, dehydration during fevers, and lack of normal saliva flow.

Answer 3

there aren't any useless organs or haven't you heard? the appendix performs several functions. its more likely you're reading an old book that was written before purposes were discovered. you forget that the body is well designed

Answer 4

any non needed organ presents a disadvantage to have because that extra mass must be kept alive, in other words if u have an appendix u need more energy (yes it is close to negligible, but still given infinite time appendixes shud disapear)

Answer 5

Ontogeny recapitulates phylogeny. (Improve your mind and look this up. It was a famous argument in the first half of the 20th century)

Answer 6

It's a leftover from our evolutionary past.

There is no selective advantage to NOT having an appendix, so they won't disappear. (Not as long as we have surgeons to remove the infected ones, anyway)

Answer 7

If they randomly developed or served a previously needed role and now do not, so unless they pose a significant disadvantage, it's unlikely they'll disappear.

Answer 8

They are there because at some point in our continuous evolution(believe it or not) we did use them for various things. Now as homo sapians we no longer need them.

Answer 9

i'm not sure but i think evolution has something to do with it