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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 humans, the vermiform appendix is sometimes called a vestigial structure as it has lost much of its ancestral digestive function.. Vestigiality is the retention, during the process of evolution, of genetically determined structures or attributes that have lost some or all of the ancestral function in a given species. [1]
This phenomenon is an automatic-response mechanism that activates even before a human becomes consciously aware that a startling, unexpected or unknown sound has been "heard". [2] That this vestigial response occurs even before becoming consciously aware of a startling noise would explain why the function of ear-perking had evolved in animals.
Date: 2 January 2012: Source: Own work.This file was derived from: Front view of a woman.jpg Author: Taken at City Studios in Stockholm (www.stockholmsfotografen.se), September 29, 2011, with assistance from KYO (The organisation of life models) in Stockholm.
The book explores how women’s biology shaped human history and culture. [1] One claim in the book is that when it comes to biological and medical research and clinical drug trials women's bodies have long been overlooked because males have fewer "complicating" factors such as the estrous cycle .
Female body shape or female figure is the cumulative product of a woman's bone structure along with the distribution of muscle and fat on the body. Female figures are typically narrower at the waist than at the bust and hips .
This is a list of female professional bodybuilders. All people listed here have an IFBB pro card. This list is incomplete; you can ...
Prior to 1977, bodybuilding had been considered strictly a male-oriented sport. Henry McGhee, described as the "primary architect of competitive female bodybuilding", was an employee of the Downtown Canton YMCA, carried a strong belief that women should share the opportunity to display their physiques and the results of their weight training the way men had done for years.