LIFE SCIENCE

Detailed explanation-1: -“Vestigial organs are the organs that have no apparent function and are considered to be the residual parts from the past ancestors.”

Detailed explanation-2: -Structures that have no apparent function and appear to be residual parts from a past ancestor are called vestigial structures. Examples of vestigial structures include the human appendix, the pelvic bone of a snake, and the wings of flightless birds.

Detailed explanation-3: -The appendix really has no function in us, but in our ancestors, it was probably larger and was important in breaking down plant material. The appendix is very large in some animals that eat only plants.

Detailed explanation-4: -A vestigial structure is a biological structure that has lost a major ancestral function and is usually drastically reduced in size. Well-known examples include the eyes of blind cave fishes and blind cave salamanders, and the diminutive wings of kiwis and emus.

Detailed explanation-5: -Vestigial structures are remnant structures that are shared with an ancestor. The vestigial structures in modern-day organisms serve as proof of evolution and shared common ancestry. The now-vestigial structures were once functional and vital to the ancestral organism.