Presentation on theme: "The top 10 Vestigial Structures. 10 The Wings on Flightless Birds The Cassowary, the sexier, but less-well- known flightless bird. Kiwi bird in Australia."— Presentation transcript:
The Human Appendix In 2000, in fact, there were nearly 300,000 appendectomies performed in the United States, and 371 deaths from appendicitis.
Analysis 1.Define vestigial. 2.How could vestigial structures be proofs for evolution? 3.Choose 2 of the structures mentioned and give an explanation for why they exist.
Answers 1.Vestigial: remnant of structure that is seemingly useless 2.Ancestors may have used that structure. Ex. Appendix was used to help digest high fiber foliage, but now we rarely eat roughage.