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Ileum, caecum and colon of rabbit, showing Appendix vermiformis on fully functional caecum The human vermiform appendix on the vestigial caecum. The appendix was once believed to be a vestige of a redundant organ that in ancestral species had digestive functions, much as it still does in extant species in which intestinal flora hydrolyze cellulose and similar indigestible plant materials. [10]
In the foregoing examples the vestigiality is generally the (sometimes incidental) result of adaptive evolution. However, there are many examples of vestigiality as the product of drastic mutation, and such vestigiality is usually harmful or counter-adaptive. One of the earliest documented examples was that of vestigial wings in Drosophila. [21]
Atavism is a term in Joseph Schumpeter's explanation of World War I in twentieth-century liberal Europe. He defends the liberal international relations theory that an international society built on commerce will avoid war because of war's destructiveness and comparative cost.
History provides many examples of notable diasporas. The Eurominority.eu map (the European Union) Peoples of the World includes some diasporas and underrepresented/stateless ethnic groups. [1] Note: the list below is not definitive and includes groups that have not been given significant historical attention.
Painting of Bimbache of El Hierro by Leonardo Torriani, 1592 The San are the oldest inhabitants of Southern Africa. Indigenous communities, peoples, and nations are those which have a historical continuity with pre-invasion and pre-colonial societies that developed on their territories, and may consider themselves distinct from other sectors of the societies now prevailing on those territories ...
The capital city of the Khmers at Angkor was the most extensive city in the world before the industrial age and contained Angkor Wat, the world's largest religious monument. [335] The Sukhothai (mid-13th century) and Ayutthaya Kingdoms (1351) were major powers of the Thais , who were influenced by the Khmers.
All India Secondary School Examination, commonly known as the class 10th board exam, is a centralized public examination that students in schools affiliated with the Central Board of Secondary Education, primarily in India but also in other Indian-patterned schools affiliated to the CBSE across the world, taken at the end of class 10. The board ...
For example, neutral human DNA sequences are approximately 1.2% divergent (based on substitutions) from those of their nearest genetic relative, the chimpanzee, 1.6% from gorillas, and 6.6% from baboons. [10] [11] Genetic sequence evidence thus allows inference and quantification of genetic relatedness between humans and other apes.