NEET BIOLOGY

Detailed explanation-1: -The appendix is a vestigial organ, originating from the cecum, a structure used to process foods. Many animals (like horses) still have a functioning cecum. As the human appendix cannot help digest food in the same way as the ancestral cecum, it is often considered vestigial.

Detailed explanation-2: -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-3: -In humans, the appendix is a good example of a vestigial organ. This non-functioning organ eventually degenerates, shrinking in size and disappearing ultimately.

Detailed explanation-4: -The examples of human vestigiality are numerous, including the anatomical (such as the human tailbone, wisdom teeth, and inside corner of the eye), the behavioral (goose bumps and palmar grasp reflex), and molecular (pseudogenes). Many human characteristics are also vestigial in other primates and related animals.