Formation, Sayniska
Cilmiga ah ee horumar. Its horumarinta ka jeer ka horreeyey soo gudbinaynaa
Aragtida of horumar - wadarta dhammaan fikradaha ku saabsan sharciyada, farsamo ee isbeddellada ka dhacaya ee dabiiciga ah organic. Sida laga soo xigtay isaga si, oo dhan ka jira wakhtigan la joogo, noocyada of noolaha soo degay ka "qaraabo" fog by waarta isbedel. Waxaa la falanqeeyo jidka taas oo ay jirto horumar ah noolaha shaqsi (ontogeny), baarayaa horumarinta kooxaha ishaysata ee noolaha (phylogeny) iyo la qabsashada.
In geeddi-socodka ah ee raasamaal ee xaqiiqooyinka qarnigii 18aad, isbedel cusub - transformism taas oo aan bartay tirayn ee noocyada. Wakiilada of waxbarista waxay ahaayeen culimada sida J. Byuffoni, E. Darwin, E. Geoffroy Saint-Ilervo. Ay aragti evolutionary caddayn lahaa laba xaqiiqooyinka: jiritaanka qaabab KMG ah ee la mid ah interspecific dhismeedka xoolaha iyo dhirta ku jira group la mid ah. Si kastaba ha ahaatee, mid ka mid ahaa tirooyinka kuwaas oo aan ka hadlay sababaha isbedelka.
Waxa ay ahayd oo keliya in 1809 waxaa jiray cilmiga ah evolutionary of Lamarck, kaas oo ahaa
U fiirsasho dunida dabiiciga ah ayaa waxay isagii hor geeyeen laba qodobada ugu muhiimsan ee taas oo ka muuqda sharciga "neuprazhneniya -. Jimicsi" Sida laga soo xigtay in ay, jidhadhkooda waxaa lagu sameeyay sida loo isticmaalo, ka dibna socday "dhaxal guryaha wanaagsan", i.e., calaamado wanaagsan dhaxasheen ab ka ab mustaqbalka, ama horumarka ka socda, ama ay baaba'aan. Si kastaba ha ahaatee, shaqo Lamarck ee aan la Mahadiyay ee dunida sayniska, aan weli la daabacay buug Darwin ee "On the Asalkii Species." Marka la eego in dood iyada ay guushu ku horumar ka dhigteen aad loo jecel yahay. Si kastaba ha ahaatee, cilmiga ahaa taageere u ahaa heritability ee sifooyinka helay. Si kastaba ha ahaatee, waxaa jira khilaaf jiray si dhab ah in labada qeyb ka nooleenta ee Lamarckism Lamarckism.
Currently, tiro badan oo ah cilmibaadhe isticmaalaan ereyga "Aragti evolutionary casriga ah." Waxa aanu u baahan tahay fikradda ah ee horumar iyo waqti isku mid ah ay guusha ugu weyn waa in taas oo kale ah isbeddel saltatsionnye la tartiib tartiib ah.
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