Cherechedza ndima iri pasi apa uye wozopindura mubvunzo unotevera mumutauro mumwe chete sezvinotaurwa mundima iyi: Passage: Natural selection inowanzofananidzwa nekupona kwevanonyanya kukodzera, asi chirevo ichi chakatanga mu Herbert Spencer's Principles of Biology muna 1864, makore mashanu Charles Darwin aburitsa mabasa ake epakutanga. Kupona kwevanonyanya kukodzera kunotsanangura maitiro esarudzo yemasikirwo zvisirizvo, nekuti kusarudzwa kwemasikirwo hakusi kwekupona chete uye haisi nguva dzose inonyanya kukodzera inopona. Mubvunzo: ndeipi nzira ine pfungwa isiriyo yesarudzo yemasikirwo?
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