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.. assalamualaikum ..
.. hari nie entry nk cakap pasal sejarah pulak ..
.. ntah la kan ..
.. tiba2 ja hah akue nk post pasal sejarah nie ..
.. nak kata semalam mimpi pasal subjek sejarah, takda lak ..
.. nak kata budak2 SPM amek paper Sejarah hari nie, tak tau la plak kan ..
.. saja la terlintas perkataan SEJARAH masa tgh on lappy nie ..
.. so, apa lagi akue bukak la entry pasal sejarah ..
.. jom kita tgk jap ..

v(^_^)v



Hari ini dalam sejarah

~24 November ~

1859 - Charles Darwin menerbitkan karya ilmiah berjudul The Origin of Species.

 
Charles Darwin's On the Origin of Species, published on 24 November 1859, is a work of scientific literature which is considered to be the foundation of evolutionary biology. Its full title was On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life. For the sixth edition of 1872, the short title was changed to The Origin of Species. Darwin's book introduced the scientific theory that populations evolve over the course of generations through a process of natural selection. It presented a body of evidence that the diversity of life arose by common descent through a branching pattern of evolution. Darwin included evidence that he had gathered on the Beagle expedition in the 1830s and his subsequent findings from research, correspondence, and experimentation.
Various evolutionary ideas had already been proposed to explain new findings in biology. There was growing support for such ideas among dissident anatomists and the general public, but during the first half of the 19th century the English scientific establishment was closely tied to the Church of England, while science was part of natural theology. Ideas about the transmutation of species were controversial as they conflicted with the beliefs that species were unchanging parts of a designed hierarchy and that humans were unique, unrelated to animals. The political and theological implications were intensely debated, but transmutation was not accepted by the scientific mainstream.

Summary of Darwin's theory


Darwin's theory of evolution is based on key facts and the inferences drawn from them, which biologist Ernst Mayr summarised as follows:
  • Every species is fertile enough that if all offspring survived to reproduce the population would grow (fact).
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  • Despite periodic fluctuations, populations remain roughly the same size (fact).
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  • Resources such as food are limited and are relatively stable over time (fact).
  • A struggle for survival ensues (inference).
  •  
  • Individuals in a population vary significantly from one another (fact).
  •  
  • Much of this variation is inheritable (fact).
  •  
  • Individuals less suited to the environment are less likely to survive and less likely to reproduce; individuals more suited to the environment are more likely to survive and more likely to reproduce and leave their inheritable traits to future generations, which produces the process of natural selection (inference).
  •  
  • This slowly effected process results in populations changing to adapt to their environments, and ultimately, these variations accumulate over time to form new species (inference).

kredit to mr.wiki



nota kaki : banyak ja pasal Origin of Species nie...tiap kali akue masuk kelas, pasal buku nie la yg akan disebut dulu...tak kisah la apa teori pon kn...pndai2 la korang pikir..jgn cetus kontroversi suda kan...akue kat sini just utk perkongsian bersama ja..

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