enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Human vestigiality - Wikipedia

    en.wikipedia.org/wiki/Human_vestigiality

    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]

  3. Vestigiality - Wikipedia

    en.wikipedia.org/wiki/Vestigiality

    Plants also have vestigial parts, including functionless stipules and carpels, leaf reduction of Equisetum, paraphyses of Fungi. [35] Well known examples are the reductions in floral display, leading to smaller and/or paler flowers, in plants that reproduce without outcrossing, for example via selfing or obligate clonal reproduction. [36] [37]

  4. Evidence of common descent - Wikipedia

    en.wikipedia.org/wiki/Evidence_of_common_descent

    Vestigial eye in the extant Rhineura floridana and remnant jugal in the extinct Rhineura hatchery (reclassified as Protorhineura hatcherii). [91] [92] Functionless wings in flightless birds such as ostriches, kiwis, cassowaries, and emus. [93] [94] The presence of the plica semilunaris in the human eye—a vestigial remnant of the nictitating ...

  5. Robert Wiedersheim - Wikipedia

    en.wikipedia.org/wiki/Robert_Wiedersheim

    The young Robert Ernst Eduard Wiedersheim, probably in early 1874 by Alfredo Noack in Genoa. [1]Robert Ernst Eduard Wiedersheim (21 April 1848 – 12 July 1923) was a German anatomist who is famous for publishing a list of 86 "vestigial organs" in his book The Structure of Man: An Index to His Past History.

  6. This simple log structure may be the oldest example of early ...

    www.aol.com/news/simple-log-structure-may-oldest...

    The log structure was made at least 476,000 years ago, while the wood tools are slightly younger, under 400,000 years old. That places the materials in a time before our species, Homo sapiens ...

  7. Vestigial response - Wikipedia

    en.wikipedia.org/wiki/Vestigial_response

    The sudden startled arm-jerking response sometimes experienced when on the verge of sleeping is known as the hypnic jerk.. The evolutionary explanation for the existence of the hypnic jerk is unclear, but a possibility is that it is a vestigial reflex humans evolved when they usually slept in trees.

  8. List of domesticated plants - Wikipedia

    en.wikipedia.org/wiki/List_of_domesticated_plants

    Plants with more than one significant human use may be listed in multiple categories. Plants are considered domesticated when their life cycle , behavior , or appearance has been significantly altered as a result of being under artificial selection by humans for multiple generations (see the main article on domestication for more information).

  9. List of examples of convergent evolution - Wikipedia

    en.wikipedia.org/wiki/List_of_examples_of...

    Palm trees form are in unrelated plants: cycads (from the Jurassic period) and older tree ferns. [229] Flower petals came about independently in a number of different plant lineages. [230] Bilateral flowers, with distinct up-down orientation, came about independently in a number of different plants like: violets, orchids and peas. [231] [232]