Birturga mansub organizmlarda ... tufayli individual farqlar tobora or

A) yashash sharoitning ozgarishi bilan tabiiy tanlanish
B) ichki intilish va sun’iy tanlash
C) oraliq formalarning vujudga kelishi va biotik omillar ta’siri
D) organlar sistemasining joylashish tartibini ozgarishi
E) togri javob berilmagan t