AP BIOLOGY

Detailed explanation-1: -Appendix. It is one of the most commonly known vestigial organs. This finger-like tube closed at one end arises from the vermiform process. In prime ancestors, the appendix is believed to have brought about the digestion of cellulose.

Detailed explanation-2: -Note:Vermiform appendix resembles a worm-like structure and hence named Vermiform.It is the only organ in the human body that helps in the digestion of cellulose. Rest of the digestion process takes place in the mouth, stomach and some in small intestines.

Detailed explanation-3: -The appendix, notorious for its tendency to become inflamed or even rupture, has historically been viewed as a vestigial organ with no real function. But new research supports the idea that the appendix may indeed serve a purpose: to protect beneficial bacteria living in the gut.

Detailed explanation-4: -The human appendix may be considered as a vestigial organ as it has been proved that the removal of the organ after infancy does not create any harm [1-3]. But the appendix has developed to the extreme in human and strategically placed to an important site at the junction of midgut and hindgut.

Detailed explanation-5: -Due to evolution many organs that were functional previously have lost their functions. These organs are known as vestigial organs. The vestigial part that is found in the human alimentary canal is the vermiform appendix. It is situated at the merging point of the small and large intestine.