The faint white line on my very white stomach is the scar from an appendectomy, an opperation to remove my appendix which is a
vestigal structure(big idea 1#41). A vestigal structure is any structure that is still present in the population but have lost their necessity throughout evolution or changes in diet, enviroment, ect. The appendix is located just below the ileocecal valve connected to the large intestine. It is believed to have possible been used to house bacteria capable of digesting cellulose or maybe to maintain antibody levels durring development. It can be removed with no side effects and has no use in the modern world, making it a vestigal structure.
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